The effect of bright computer screens on the brain is too underestimated by many. Sitting at a computer at night leads to a suppression of the production of melatonin, which gives the body a kind of signal to sleep. This, in consequence, leads to sleep disturbance and fatigue in the daytime. This happens due to the excessive amount of light that comes from computer monitors, laptops or displays of phones and tablets. That is why it is advisable to reduce the brightness of the displays at least by half in the evening and at night. If you are using a laptop or phone, this step will also save battery life. In this article, we will tell you how to reduce the brightness of a computer and laptop monitor.

How to change laptop display brightness?

Each laptop is different, so screen brightness and contrast adjustments may differ from the steps in this article. Note that the brightness level may be limited by your power settings.

Method 1 - Adjusting the brightness using the keys

Most laptops support changing the brightness level using a function key in combination with another key. For example, by pressing and holding the function key (abbreviated "Fn") and the up or down arrow keys, you can increase or decrease the brightness of the screen. The key used to adjust the brightness along with "Fn" may differ depending on the specific laptop model, but the symbol remains the same everywhere - the sun icon.

Method 2 - adjusting the brightness through the control panel

You can also adjust the brightness through the control panel, in the display settings. To do this, do the following:

Method 3 - Changing the brightness through your graphics card driver software

If you have one of the popular video adapters installed (Nvidia, AMD or Intel), you can change the brightness, contrast, gamma settings in the driver's own configuration window.

For NVIDIA graphics adapters

For AMD Graphics

AMD/ATI video drivers also have the ability to change the brightness, contrast, and gamma of the display, although access to the settings panel for these values ​​may differ between driver versions. For example, in the Catalyst 10.2 version, to enable brightness control, you must go to the Color menu. You can open the program by right-clicking on the desktop and selecting Catalyst Control Center from the context menu.

For Intel Graphics

Method 4 – If the above methods do not work

If the keyboard combination with the function key does not work, and you have made the appropriate adjustments in Power Options, then most likely your computer has problems with the video card drivers. This usually happens after a driver update. In this case, we recommend either rolling back to the previous version of the driver or performing a clean install. A clean installation implies the complete removal of the current driver from the OS (including additional software) and the installation of a new driver.

If none of the options helped, then most likely the problem is either in the operating system or in the hardware.

How to change desktop monitor brightness?

If you have a desktop computer, then the above methods also apply to it, but it is much more convenient to use the functionality of the monitor itself to calibrate the brightness settings. Almost all monitors have physical or touch control buttons. Usually there are 4-5 of them: power button, menu, auto-tuning, left and right arrows.

Of course, depending on the model, their number may vary. For example, the new Samsung monitors use a 5-way joystick.

To adjust the brightness, press the "Menu" button and go to the brightness and contrast settings. Use the left or right arrow keys to set the desired value.

If you have a different control scheme, refer to your monitor's instruction manual that came with it.

1. In a room where the sun is shining, it is better to pull up the curtains a little and set the brightness at 15-30%. Here, of course, everything is individual, but more than a third of maximum level brightness should not be set. If, nevertheless, the sun shines directly on the display, then set the maximum level.
2. If your work is related to design or photography, then you should remember that when the brightness is reduced, colors may be distorted.
3. Try to set the lighting so that its light does not fall directly on the monitor. This can cause glare and discomfort in operation.

Many people spend most of their working time at the computer, and we often forget that when working at a monitor for a long time, the eyes get the main load in the first place. Experts say that the optimal distance of the eyes from the monitor is in the range of thirty to fifty-five centimeters, and in no case should you squint. If at a given distance you can’t see the text of Internet resources well, or by the end of the day you began to disassemble it poorly, then it’s better to zoom in on the page or the text itself, and not “poke your nose” into the monitor screen. We will discuss how to do this below.

How to zoom in on a page in Mozilla

There are several options for changing the scale of displayed information on web resources. Consider the available options.

To zoom in on a page to improve readability using the Firefox web browser menu, you must:

Launch the browser, open the menu (an icon with three horizontal lines located one below the other, in the upper right corner of the window). At the very top of the menu window, you can see the zoom control panel. Click on the plus sign, the scale increases, on the minus sign, respectively, decreases. The percentages in the middle show the size of the displayed objects on the Internet portal. By clicking on these numbers, the size will return to the standard one hundred percent.

You can also see the current zoom level on the top right side, next to the address bar.

To change the scale of the page using keyboard shortcuts, you need to press and hold the “Ctrl” key while on a specific site and simultaneously press the “+” button on the keyboard of a personal computer to increase the page size, the “-” button to decrease it, and the number "0" will reset its value to default. Also, instead of the "plus" and "minus" buttons, you can use the wheel on the computer mouse, rotating it forward, while pressing the "Ctrl" button, you will zoom in, back, zoom out.

How to increase letters in mozilla

If you need to change the font size in the text of any Internet resource, then for this you need to launch a web browser, press the "Alt" button on the keyboard. You will have the traditional Firefox menu bar at the top of the window. Click on the “View” item, then hover over the “Scale” sub-item and check the box next to the “Text Only” function.

Now, doing all the actions that you performed to change the scale of the Internet resource, they will change the scale of the text part of the web page.

In order to return to resizing the site as a whole, you need to press the "Alt" button again, select "View" - "Scale" and uncheck the "Text Only" item.

Also, the Mozilla browser has the function of setting the minimum font for the text part of the Internet site. When you open a web page, Firefox will convert the text size within the minimum size you set. In order to set minimum size text, follow the instructions in the following picture below.

If you do not want to change the scale every time you start or go to another Internet resource, you can download a special browser add-on that will do this for you. This extension is called "NoSquint Plus".

In order to install it you need:

Open the Mozilla search engine, go to the browser menu, select the "Add-ons" menu item.

In the window that opens, in the search bar, enter the name of the extension "NoSquint Plus", click on the search (the magnifying glass icon to the right of the search box). At the end of the search, select the desired extension, and to the right of it, click the "Install" button.

When using Mozilla Firefox, the user has the ability to adjust the scale of both the entire web page and fonts separately. Thanks to this feature, the browser is customized to the individual needs of the user, making it easier to view and read the pages.

In this article, we will step by step analyze all the subtleties of setting the browser scale on various devices.

Windows personal computer or laptop

Launch Mozilla on your PC. The start page will open. To start making changes, you need to call the context menu. To do this, click the symbol in the upper right corner, the parameter settings menu will open:

Using the function keys or you can adjust the scale of the page. To set the size to 100%, double-click on the number between the keys.

This procedure can be repeated in the second way without using the mouse. Press and hold the key in combination with or respectively. To set the mode to 100%, use the key combination +.

Font Size Adjustment in Mozilla Browser

There are situations when it is necessary to change only the size and type of the font, which is difficult to read. In this situation, you need to press the Alt button. After that, you will see an additional menu in the upper left corner. Press the button - View - Scale; and check "text only". After that, the browser will reduce only the text, and leave the original elements unchanged.

Mozilla can also set the minimum font type. To do this, you need to enter the context menu, as described above using the button. Now select Settings. A new window will open, select "Content"

For advanced users

Mozilla settings also have a part hidden features which can only be used by advanced users. These tools allow you to customize the browser more flexibly and precisely.

In order to get into this menu, you need to use "about:config" . Enter this combination in a new browser window. Then press enter.

Please note that this configuration is for advanced users only. Incorrect actions on your part can damage the browser.

After signing in, you will see a warning that you may damage Mozilla. So if you are not confident in your abilities, it is better to refuse further edits.

If, nevertheless, you are an Internet guru, then click the "I accept the risk" button and begin further configuration. The configuration page contains the entire set of Mozilla Firefox configuration options. It is the most efficient and most powerful way to customize how your browser works.

The name of the setting. All names are divided into groups and have intuitive names. First, read them, then make changes.

Setting the scale: If we need to change only the size of the text so that it does not affect the entire page, we are looking for the browser.zoom.full parameter. After that, in the "Value" field, change it to "false"

Mozilla assigns scale individually to each page. If you need to set the same settings for all pages when moving from site to site, look for the browser.zoom.siteSpecific parameter. Set it to "false" as in the previous example.

The browser also has fine-tuning of the bottom and top borders. If they do not suit you in their original form, they can be changed in the configurator. To zoom out, use the zoom.minPercent parameter. (The minimum size is used as a percentage of the normal size.) The maximum parameter is respectively zoom.maxPercent. (maximum zoom)

Parameter layout.css.devPixelsPerPx, it can take values ​​and 0.9, 0.8, 0.7…(90%, 80%, 70%), so you will reduce the scale of the Mozilla page to the required one.

Zoom out in Mozilla for Android

Mobile version of Mozilla, zoom out with gestures. To reduce text and pictures, all you need to do is to “pinch” your device. To do this, simply swipe your fingertips towards each other.

Also, to change the scale, double-click on the screen. With a quick double-click, the text and page elements are enlarged. To reduce, use the same technique. If you double-click again, the page will shrink.

What I don't like about Chrome is the white background flickering when the page is rendered. As far as I understand, this happens at the engine level, and cannot be changed at the user level, even if you change the colors in the OS. I think that at this point you need to throw a stone in the garden of Chrome developers. Why do they determine the color of the canvas on their own, and do not take it from the system settings of the OS? The same applies to Skype and a number of other "serious" applications.

Opera

Opera is not so dense. All I could find is the Contrast Changer extension. Or a simpler variant in the form of a bookmarklet .
As an alternative to Clearly, you can use the online service Instapaper and their bookmarklet.
Also recently appeared Stylish extension.
We select a dark theme. For example, Opera Simple Dark.

Stylish alternative

Text editor

Microsoft Word 2010

before and after

To change the interface color:
File > Options > General > User Interface options > Color Scheme: Black. To change the color of the paper (background), you need to change the colors in the OS.
For older versions of office, I can't help.

Another bonus of “white on black” for mobile devices is that this combination consumes less energy(because it emits less light). How much less? Don't know. I suspect that with prolonged reading it is very noticeable. It would be interesting to see the statistics.

Vision hygiene

Contrast

As mentioned above, don't use too much contrast (max white on max black). Contrast ≠ readability. Light gray on dark gray is more comfortable. What kind of grayscale - choose individually.

Contrast plays a role not only in the image on the display, but also with the outside world. That is, take into account the lighting in the room and try to avoid too much contrast between the lighting and the brightness of the display/colors. This is especially true for night owls. If you are already working in the dark, switch to dark color schemes - your eyes will get much less tired. The contrast between a dark and a light theme in a dark room can differ by 20 times or more!

Distance

Don't forget about the inverse square law. If you are used to leaning towards the monitor, then when reading, increase the font ( ctrl+) and deviate at least 15cm more back. This will significantly reduce the amount of light emitted to the eyes. Of course, the monitor has too much area to consider it as a point source of light and apply this law to it. But as a simple one shows - with not too bright ambient light, deviating back from a distance of 55cm to 75cm, the illumination from the monitor decreases by 1.5 times (and even more in the dark). The recommended distance from the monitor is 50-70cm.

breaks

Regular breaks from working at the monitor are more beneficial for vision than all of the above combined. But how do you remember to take regular breaks?

I especially liked the Workrave app. Adjustable for different time intervals and pauses of different lengths (eg 3 short pauses every 15 minutes, 1 long pause every hour). Able to block the system for a certain time without the possibility of cancellation, which is very motivating to get up from the workplace :) It has many small conveniences in the settings. For example, a warning pops up a few seconds before blocking, and if you are already very busy and there is no time for a pause, then just continue to work - the application will notice activity (keyboards, mice) and cancel the blocking. It also independently determines when you yourself take a break and resets your timer.

Exercises

I suspect that most readers are familiar with the symptoms of computer vision syndrome such as spasm of accommodation (pseudomyopia, false myopia) or dry eye. There is enough information on the net how to prevent these disorders through various exercises and gymnastics for the eyes. The main thing is to do them regularly, at least several times a day. I would like to point out 2 types.

Human vision is arranged in such a way that the normal state of the eyes (when the eye muscles are relaxed) is accommodation into the distance. Since the monitor is normally located relatively close to the eyes, the ciliary muscle is constantly tensed to keep the lens convex for close focusing. This leads to fatigue and spasms of the ciliary muscle (pseudomyopia), and over time to a permanent deterioration of vision. Alternate looking far and near, compensates for this tension, for which it is necessary to break away from the monitor (which Workrave contributes well to) and periodically exercise by the window for several minutes.

The second type is face palming.

face palming

Yes, yes, that's it. So every time you react to an epic fail, you have the opportunity to stretch your eyes. This method is also known as palming. There is a lot of speculation and ambiguous personalities around this word to this day. Therefore, I will immediately make a reservation that I recommend this exercise. not as a method to improve vision, but as a method to relax the eyes. Darkness makes it possible to "rest" photoreceptors, and the warmth of warm hands expands the vessels of the eyes and stimulates blood circulation. It will also moisten the eyes, because for some reason, when working at the monitor, a person blinks many times less. Well, given that the brain spends most of its energy on processing visual information, this is also a way to relax the gyrus a little.
(house) and without lighting (at night). Daylight ruled out because the result is highly dependent on many factors (e.g. weather) and has a large scatter in measurements.
Distance. For a long distance, I took the length of my arm 75 cm. Near - a slope of ~ 20 cm forward closer to the monitor.
Display Brightness. Under conditions without clarification, I measured twice - with the maximum brightness of the display and, accordingly, with the minimum.
Measurement results. All the data was brought together in one table. For comparison, I used the ratio between illuminations in different conditions. As can be seen from the table, with “average” lighting, leaning back, the illumination decreases by 1.5 times. And in the dark, if you use a dark scheme, then the illumination decreases by 25 times.
Disclaimer! The results of the experiment do not claim to be universal conclusions, since the experiment was done “on the knee”. But I dare to assume that similar results will be observed in many everyday situations.
vision

black and white

color

Add tags Overclocking Mozilla. Simple tweaks + 14 Mozilla Firefox tricks and hotkeys

If someone's browser suddenly starts to slow down, especially Firefox, then do the following simple operations:

1. Type about:config (copy directly from here) in the address bar: you will be taken to the settings menu by pressing the enter key.

2. Locate the network.http.pipelining parameter, double click this option to change the parameter from False to True.

3. Find the network.http.proxy.pipelining parameter, double click this option to change the parameter from False to True.

4. Find the network.http.pipelining.maxrequests parameter, double click on it and change the number to 150~200

5. Right-click and follow New > Integer (integer), in the name enter nglayout.initialpaint.delay and put the number 0.

6. The browser.sessionhistory.max_entries variable is responsible for maximum amount pages stored in memory. Worth a value of 50. Worthless. We put 5, rejoice.

Yesterday I personally changed my settings, I am not overjoyed with the result, so I highly recommend it!

A significant correction: I recommend entering it manually in the address bar, there should not be spaces between colons, but when I published the post, this space constantly appears on the left and if we copy and paste it in this form, then we will either get to Yandex or somewhere else.

Source: www.site/users/3691199/post207354738/

14 Mozilla Firefox Tricks

1. To quickly find any word on a web page, type "/word" -slash brings up the quick search function, and the searched word will be highlighted, and then press Ctrl + G to "find again" this word.

2. If you want to remove any list item from the drop-down menu of the address bar, highlight it with the cursor - and just press Shift+Delete.

3. Periodically clear the download history so that the download manager works better, this is configured in the English version of the browser here:
tools | Options | Privacy, and in Russified - here: Tools | Settings | Downloads.

4. Type about:cache?device=disk in the address bar to view/save items that are in Firefox's disk cache.

5. Type about:cache?device=memory in the address bar to view/store items in the Firefox cache.

7.If you accidentally deleted a bookmark and want to restore it, open the Bookmarks Manager and press Ctrl+Z or in the menu:
Edit | Undo (Edit | Cancel).

8. Double-clicking on an empty space in the Tab Bar opens a new tab.

9. Hold down the Ctrl key while right-clicking on the View Image or View Background Image context menu to open the image in a new tab or window.

10. The bookmarks folder can also be dragged to another location, but you must hold down the "SHIFT" key.

11. To prevent the website from replacing/changing your right-click context menu, go to Tools > Options > Web Features, and then click on the "front tab" line and deselect the "Remove or replace context menus" menu . In Firefox 2: Tools> Options> content> Advanced (Tools> Settings> Content> Advanced).

12. You can work with Firefox offline - just open the menu File> Work Offline (File> Work offline). This means that you can even view previously opened pages offline - a great feature, but few people use it.

13. You can bookmark an open page by dragging the icon from the location bar to your bookmarks folder. You can also drag it to your desktop to create an icon for this page.

14. To stop playing animated gifs, press the ESC button. And in addition ... Keyboard shortcuts for convenient work in Firefox from the keyboard!

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Hotkeys

Close tab: Ctrl+W Ctrl+F4
- Close window: Ctrl+Shift+W Alt+F4
- New tab: Ctrl+T
- New window: Ctrl+N
- Select tab (from 1 to 8): Ctrl+(1 - 8)
- Select last tab: Ctrl+9
- Put all tabs in bookmarks folder: Ctrl+Shift+D
- Select address bar: Ctrl+L F6 Alt+D
- Open address in new tab: Ctrl+Enter
- Web Search: Ctrl+E Ctrl+K
- Next tab: Ctrl+Tab Ctrl+Page Down
- Previous tab: Ctrl+Shift+Tab Ctrl+Page Up