"Allow pages to choose their own fonts, and not my selection above" only shows squares with numbers in them for all english characters

When ever I select this option firefox only shows characters that appear when you do not have foreign fonts installed, except for English. The characters are squares with numbers in them at the bottom of the character.

Try to set the Boolean pref gfx.font_rendering.directwrite.use_gdi_table_loading to false on the about:config page.
*http://kb.mozillazine.org/about:config

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Content tab in Options..."Allow pages to choose their own fonts, instead of my selections above" and it's box disappeared from my options...I need it back...

I was having problems with some sites having such faded lettering that I couldn't even read them. So I unchecked the box for "Allow pages to choose their own fonts, instead of my selections above". That screwed EVERYTHING up...backgrounds on websites are gone and buttons are hardly recognizable on some pages (including this one). I went back to re-check that box, and that option is no longer in the menu...the whole sentence and it's associated check box are completely gone. I even tried tabbing through to see if I just couldn't see them, and nothing. Absolutely disappeared. I also tried checking and unchecking the same box under the "advanced" button settings and that made a difference on how web pages looked, but did not fix the problem...Help???

Did you look here?
*Tools > Options > Content : Fonts & Colors > Colors : [X] "Allow pages to choose their own colors, instead of my selections above"
Note that these settings affect background images.
See also:
*http://kb.mozillazine.org/Website_colors_are_wrong
You can also change this by toggling the browser.display.use_document_colors pref on the about:config page.
*http://kb.mozillazine.org/about:config

When "allow pages to choose their own colors, instead of my selections above" is un-checked in the options menu, I am unable to see images on websites. How do I maintain having the box un-checked and still view images?

I recently decided to switch the colors around in Firefox. I work in a pretty dark environment and having dark colored text on white or bright backgrounds is rather difficult on my eyes in the dark.
I switched the background to a dark gray, the text to a light gray and both visited and unvisited links to a light blue. Along with these changes, I unchecked the "allow pages to choose their own colors, instead of my selections above" box.
After unchecking the box, I am no longer able to view images on many websites. The images all turn gray - as if Firefox has changed their image into part of the background. When I check the box, I am able to see images fine, however, the websites usually revert back to their bright backgrounds with dark text.
Any help and assistance with this is greatly appreciated!
Thank you!

You can use the NoSquint extension to set font sizes (text/page zoom) and text colors on web pages.
* NoSquint - https://addons.mozilla.org/firefox/addon/2592

Need a shortcut to "Allow pages to choose their own colors, instead of my selections above option preference" I know where it is and how to use it but I have to go through 7 mouse clicks to change it, then a few minutes later change it back. I also k

Need a shortcut to "Allow pages to choose their own colors, instead of my selections above option preference" I know where it is and how to use it but I have to go through 7 mouse clicks to change it, then a few minutes later change it back. I also know the sequnce is alt t, alt o, alt c, alt a, then ok, ok. Got to be a way to make a one key short cut for this. I use a black background to reduce eye strain, but about 10% of the webpage I go to can't be send with black so I have to go into tools and hit 6 or 7 things to chnage it then after through with webpage have to do it all over at Not allow webpages to have own color. Very very cumbersome.
== This happened ==
A few times a week
== made that way

https://addons.mozilla.org/en-US/firefox/addon/toggledocumentcolors-198916/
The above addon will solve your problem.
Shortcut to toggle user color/page color :- Ctr+Shift+C

Hello! Is there a way to create a shortcut that toggles on/off the checkbox "Allow pages to choose their own colors, instead of my selections above" located in Tools/Options/Content/Colors? I have to change this setting many times and need to speed it up.

I have looked for add-ons that could automate this configuration change, but to no avail. Only web page actions can be recorded in a macro, but no configuration changes.
A shortcut to get to the appropriate dialog box would help as well. I could manually tick/untick the box while saving all the several steps needed to get there. But I have not found it anywhere.
Thank you very much for any help you can provide me.
Best regards,
Alex

Hi, I want to drop a note to say thank you, cor-el. Your answer was better and faster than I could have expected. It not only solved my problem, but also opened new possibilities for more quick configurations.
I am now obliged to follow your example and join this wonderful community of volunteers that help others to enjoy this fantastic browser.
Best Regards!
Alex

Some sites don't have symbols unless "allow pages to choose their own fonts" is checked

With option "allow pages to choose their own fonts..." deselected, some symbols are improperly displayed.
I think I know what's happening. With the option selected, FF displays some symbol characters with the wrong font.
But, this doesn't make sense, since these symbols are not in any language font. None of them will produce the correct symbols if selected as the personal preferred font. So, it's incorrect to render these symbols in any of the fonts selected as my personal preference, regardless of status of this option.
So, FF should use the a symbol font for these symbols regardless of this preference setting.

You can accomplish what you want with a user style. Here are step-by-step directions. If you need any more help, just ask.
# Leave "Allow pages to choose their own fonts" enabled.
# Install Stylish.
#* https://addons.mozilla.org/firefox/addon/stylish/
# After Stylish is installed, open the Add-ons Manager, User Styles category.
# Click the Write New Style button at the top.
# In the style editor window, paste either of the following. Give the style a name and then click the Save button.
'''Variant #1''' 
This is the easiest and safest thing to do. It applies your default sans-serif font to all sites, except those you specify. To specify exceptions, replace the placeholders with actual domain names. To add new exceptions, add another '''|''' symbol followed by the domain name.
<pre><nowiki>@-moz-document regexp("https?://(?!(example-of-an-exception.com|www.placeholder.site-exception.net)).*") {
* { font-family: sans-serif !important; }
}</nowiki></pre>
'''Variant #2''' 
This requires a bit of work on your part. You must know the font that's being used to display the symbols in question. Right-click a symbol and choose Inspect Element. In the Inspector pane, click the Fonts tab. You should see the font family names listed there, labeled with "remote". The actual font family name is below, under "Used as:". 
You're going to want to specify your ideal font first, then the site's fonts after that. If certain characters can't be rendered with the font you want, then Firefox should fall back to the second font in the list, or the third, and so on. If none of the specified fonts contain the required characters, then Firefox will display the Unicode codepoints (rectangles with numbers in them).
<pre><nowiki>@-moz-document url-prefix("http://"), url-prefix("https://") {
* { font-family: Arial, "Segoe UI Symbol", FontAwesome, PlaceholderFontOne, "Placeholder Font Two", sans-serif !important; }
}</nowiki></pre>
----

I want to override webpage fonts but tools/options/fonts and colors/advanced/[]Allow pages to choose their own fonts doesn't work (unchecking it)

tools/options/fonts and colors/colors does work to some extent - it does not overide link colors, but I don't really care about that. ^+ and ^- (ie control plus/minus) do work to change size to some extent - everything bigger/smaller, but of course not everything size=20, eg. I know there must be a way to do this sort of thing because years ago I could do it in Netscape.

Some extensions that you can look at:
* Default FullZoom Level - https://addons.mozilla.org/firefox/addon/6965
* NoSquint - https://addons.mozilla.org/firefox/addon/2592

Firefox option "Allow Website to choose their own font/color" fails in High Contrast

On Windows 8.1 and Firefox 32, the option to Allow pages to choose their own colors, instead of my selections above" Fails completely if Windows 8 is using a High Contrast Theme.
Regardless of the Windows Theme, Firefox should allow pages to use their designed colors otherwise problems will exist on a number of sites. Including the Mozilla.org page.
With the Allow Pages... turned on, it should look like this:
http://yosemitelandscapes.com/temp/correct.jpg
Instead the Windows High Contrast is forced upon the web site:
http://yosemitelandscapes.com/temp/incorrect.jpg
For reference Chrome does this correctly which has forced me to switch to the Chrome Browser until a fix is issued for this problem.
NOTE: This is not the same problem people reported where High Contrast did not function in Firefox 29. But I think it may be related to the fix.
I have tried "reverse logic" and turned these options on and off to see if the behavior changed. Pages refreshed and even closed and reloaded. I can find no way to work in High Contrast Themes and allow pages to show up normally in Firefox 32.
I much prefer the security and design of Firefox. Help us please!!!

That's a painful example. I don't have access to Windows 8/8.1 myself, but I suspect this is by design, as I have seen other screenshots from users using high contrast dark themes that did not have background colors and images.
Firefox 32 contains a change from this bug: [https://bugzilla.mozilla.org/show_bug.cgi?id=1042625 Bug 1042625 - Page should be drawn in accordance with the high contrast themes]. The testing (and a comment in the patch) refers to solving a problem on Windows 7, but apparently Windows 8 also was affected.
I don't know whether there is a workaround to tweak what is and isn't displayed in the page with a high contrast theme.

I have FF and win7. Fonts turn to weird characters at more then 75% zoom when the checkbox "allow webpages to choose their own fonts" in the contents option advanced is checked, when forced to calibri this behaviour doesnt occur An aexample of that is

I have FF and win7. Fonts turn to weird characters at more then 75% zoom when the checkbox "allow webpages to choose their own fonts" in the contents option > advanced is checked, when forced to calibri this behaviour doesnt occur
An aexample of that is the product title on the product of this website:
https://www.xstreetsl.com/modules.php?name=Marketplace&file=item&ItemID=2424553
While switching to double check this I just saw that this also happens in this very window in wich i am typing my question now. If i copy and paste this text to for example notepad or anything else, it shows up like normal text.
== This happened ==
Every time Firefox opened
== i installed firefox on win 7

This issue can be caused by the bitmap version of the Helvetica or Geneva font or another (bitmap) font that can't be displayed by Firefox in that font size.
Firefox can't display that font in the specified size and displays gibberish instead.
You can test that by zooming out (View > Zoom > Zoom Out, Ctrl -) to make the text smaller.
Uninstall (remove) all variants of that not working font to make Firefox use another font or find a True type version of that font that doesn't have the problem.

Even with "Allow pages to use their own fonts" enabled, firefox sill dictates fonts on some sites. WTF.

I built my website to show some work I did, everything was fine in firefox 3.6 but i upgraded today and now the font styles i wrote into the page are being overridden somehow.
Yes, i checked allow pages to use their own fonts.

That should work unless the specified font is missing or corrupted and in that case you need to (re)install that font.

Could you please put a fast shortcut in the toolbar to un/check "Allow pages to choose their own colors,..." from Options Content Colors

could you please put a fast shortcut in the toolbar to un/check "Allow pages to choose their own colors,..." from Options> Content> Colors>

hello bygabyga, i think this will be a too specific use-case to be added as a general feature into the browser. you can make use of an extension though to get this kind of functionality: https://addons.mozilla.org/firefox/addon/toggledocumentcolors-198916

I have Windows 7 with classic desktop display settings. My browser window is displaying in the system scheme, even though I have "Use system colors" unchecked and "Allow pages to choose their own colors..." checked.

''Duplicate post, continue here - [/questions/777317]''
This is interfering with my browsing, as some text, images and links are obscured by the solid background. I could, of course, use the modern "Aero" theme but it would be much better to be able to use the display settings that I prefer.

That's a painful example. I don't have access to Windows 8/8.1 myself, but I suspect this is by design, as I have seen other screenshots from users using high contrast dark themes that did not have background colors and images.
Firefox 32 contains a change from this bug: [https://bugzilla.mozilla.org/show_bug.cgi?id=1042625 Bug 1042625 - Page should be drawn in accordance with the high contrast themes]. The testing (and a comment in the patch) refers to solving a problem on Windows 7, but apparently Windows 8 also was affected.
I don't know whether there is a workaround to tweak what is and isn't displayed in the page with a high contrast theme.

Visited links in Google are not changing color. In Options Colors visited links are purple. Also, the "Allow pages to choose their own colors..." is checked

I have been using Firefox for many years. In the past year the Google page has stopped showing visited links in another color. Options are normal. Links should change to purple when visited.
This has been happening for a long time now. There have been several Firefox updates since then. Is it a problem with my system?

Does this happen with other visited links as well?
Start Firefox in [[Safe Mode|Safe Mode]] to check if one of the extensions (Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance).
*Do NOT click the Reset button on the Safe Mode start window or otherwise make changes.
*https://support.mozilla.org/kb/Safe+Mode
*https://support.mozilla.org/kb/Troubleshooting+extensions+and+themes
There are other things that need your attention.
Your system details list shows that you have two Flash plugins.
# Shockwave Flash 11.7 r700
# Shockwave Flash 11.6 r602
You should remove the older Flash 11.6 r602.
See "Manually uninstalling a plugin":
*https://support.mozilla.org/kb/Troubleshooting+plugins

Display problems with allowing web pages to use their own fonts, both on and off.

I refer to the "Allow pages to choose their own fonts, instead of my selections above" option in the Content > Advanced tab of the Options menu.
When I have this option unchecked, allowing my font choice to override the default non-image generated text for web pages, it seems that many icons and buttons on numerous sites are replaced by some sort of hex code malfunction. They appear as small boxes with four characters inside. I'm sure someone knows the official term for what these are and why they occur.
When I have the option checked, however, any non-image generated text on numerous websites appears as an ugly Stencil font that I simply cannot find the origin of. It should not be and clearly isn't the default font for all of these different sites. By "non-image generated text", I mean any text that is not incorporated into the design of the page.
This issue has persisted through several full re-installs. Any insight into a solution for one or both sides of this problem would be quite appreciated. Thanks for reading.

You would have to remove (uninstall) or reinstall the Georgia font if it is currently corrupted.
You can use the System File Checker to check for missing and corrupted font files.
It needs to be run from an Elevated Command Prompt.
Open a cmd.exe window as Administrator:
Start, click Programs, click Accessories
Right-click Command Prompt, and choose "Run as administrator"
Click past the UAC Screen
After the cmd.exe prompt, type: sfc.exe /scannow and press Enter
* http://windowsforum.com/threads/system-file-checker-a-great-windows-fix-tool.19250/

My New Tab Page does not work at all. I just have the empty squares with nothing in them at all?

My New Tab Page does not work at all. I just have the empty squares with nothing in them at all?
I know how to use about:config & have had the usual problems with newtab page tiles but this is more like a bug- using 33.0.1. Doesn't show tiles icon in top right corner just shows a gear that is used to hide the empty tiles that I can't fill with sites. First it would only show 2 rows of 4 columns even though I had it set to 5 & 6 then few days later for no reason they went empty with a serrated line around the tiles & can't drag from the bookmarks---- really bloody annoying!!!!!!! Possibly a setting in the about:config but i can't fig it out?

Reset Firefox to its default state
If you're having major problems which you can't resolve, start fresh with only your essential information.
Troubleshooting Information
This page contains technical information that might be useful when you're trying to solve a problem. If you are looking for answers to common questions about Firefox, check out our support website.
Application Basics
Name Firefox
Version 33.0.1
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"Allow pages to choose their own fonts, and not my selection above" only shows squares with numbers in them for all english characters

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