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How can I restore the old Default theme settings?

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New User

How can I restore the old Default theme settings?

Woke up this morning to find that firefox automatically updated their Default theme add-on to version 22. All information on webpages (fonts/images/etc) is about 4 times the size it used to be, yet the menu bar font is the same size. I can't find a way to get it back to the way it was- since if won't let you get rid of it, and I can't use it the way it is- since I have to scroll just to get past the address bar in my email (and my resolution is set to the highest possible). Any ideas for something similar to the old version? since this font size makes it seem like I am reading from a children's book and is completely intolerable.

1 ACCEPTED SOLUTION

Accepted Solutions
Site Moderator

Re: How can I restore the old Default theme settings?

Code changes regarding HiDPI support for high resolution displays have landed in Firefox 22 and later (bug #844604).

You can modify the layout.css.devPixelsPerPx and increase or decrease the value in 0.1 or 0.05 steps to adjust the size of fonts and other elements in Firefox.

  • The layout.css.devPixelsPerPx pref is a String value parsed to a float and allows to fine tune the dimensions of all elements (user interface and web pages) more precisely (resolution 0.1 or 0.05).
  • Change the default value -1 to 1 to make it work like in previous Firefox versions (100%)

Start with a value of 1 and adjust this value with 0.1 steps or 0.05 for finer adjustments.

  • Use values between 1.0 and about 0.5 to reduce elements in size (do NOT go all the way to 0.05!)
  • Use values greater than 1.0 to magnify and make elements larger (percentage divided by DPI, % / DPI).
  • http://kb.mozillazine.org/about:config

If web pages needs to be adjusted after changing this pref then you can look at the Default FullZoom Level or NoSquint extension.

Use this extension to adjust the font size for the user interface:

5 REPLIES
Site Moderator

Re: How can I restore the old Default theme settings?

hello, firefox 22 is now respecting the pixel density you've set on a system level in the windows control panel > appearance > display. more information about that is availbale at http://windows.microsoft.com/en-us/windows7/make-the-text-on-your-screen-larger-or-smaller

if you want to set the text size/pixel density in firefox different from that of your system's settings like it was handled in prior versions, enter about:config into the firefox address bar (confirm the info message in case it shows up) & search for the preference named layout.css.devPixelsPerPx. double-click it and change its value to 1.0 (or any other zoom factor that fits your purpose; -1.0 is the default value and will adhere to the system settings).

Site Moderator

Re: How can I restore the old Default theme settings?

Code changes regarding HiDPI support for high resolution displays have landed in Firefox 22 and later (bug #844604).

You can modify the layout.css.devPixelsPerPx and increase or decrease the value in 0.1 or 0.05 steps to adjust the size of fonts and other elements in Firefox.

  • The layout.css.devPixelsPerPx pref is a String value parsed to a float and allows to fine tune the dimensions of all elements (user interface and web pages) more precisely (resolution 0.1 or 0.05).
  • Change the default value -1 to 1 to make it work like in previous Firefox versions (100%)

Start with a value of 1 and adjust this value with 0.1 steps or 0.05 for finer adjustments.

  • Use values between 1.0 and about 0.5 to reduce elements in size (do NOT go all the way to 0.05!)
  • Use values greater than 1.0 to magnify and make elements larger (percentage divided by DPI, % / DPI).
  • http://kb.mozillazine.org/about:config

If web pages needs to be adjusted after changing this pref then you can look at the Default FullZoom Level or NoSquint extension.

Use this extension to adjust the font size for the user interface:

New User

Re: How can I restore the old Default theme settings?

I accidentally set mine to 11. how can i revert it back. Its too big to where i cant see anything

SUMO Contributor

Re: How can I restore the old Default theme settings?

Hi magicbucks56, I think you got a reply from cor-el in another thread. Here's another set of steps in case that didn't help: https://support.mozilla.org/en-US/questions/963226#answer-449698

Site Moderator

Re: How can I restore the old Default theme settings?

That would be this reply: