Firefox Community Forum

I can not get rid of the pink background in the address bar, search box or background space of yahoo mail. I can not find the revert to default theme as previous post from several years ago suggested as a solution.

Turns out you cant use your own stuff until it is approved, Sorry for this question I am absolutely new to firefox workshop. Case closed (Please delete it because I couldn't find how to do that)

I have installed an animated theme for my home page a while back, but recently if I minimize firefox the memory usage increases until it freezes my pc completely. I know this issue has been reported as Bug 1828587 2 years ago and it is said that it is fixed, but here I am experiencing the same thing. I would appreciate any help since I am not that good at coding a css file. Here is my userContent.css code if maybe i set something up wrong:

@-moz-document url("about:newtab"), url("about:home"), url(about:privatebrowsing) {

   /* Sets background image and autoscale image to browser window. */
   body {
       background-image: url("wallpapers/wallpaper.avif") !important;
       background-size: cover !important;
       background-repeat: no-repeat !important;
       background-attachment: fixed !important;
       background-position-x: center !important;
       background-position-y: bottom !important;
   }

   @-moz-document url("about:newtab"), url("about:home") {
       .top-site-outer .title {
           color: white !important;
       }

       .logo-and-wordmark .wordmark {
           fill: white !important;
           color: #00aaff !important; /* fallback for text */
       }

       .context-menu-button.icon {
           fill: white !important; /* for SVG-based icons */
           color: white !important; /* for any text-based fallback */
           opacity: 1 !important; /* ensure visible even when normally dimmed */
       }
   }

The second part is to make some of the text on my homepage white so it is visible.

When I updated to Firefox 146 yesterday, the theme I was using disappeared and I ended up making a new theme using Firefox Color. I submitted it to the add-ons list and it has now been accepted, so now I am using it installed from the add-ons. Ever since I started using the new theme, even before installing it from the add-ons menu, my private browsing window is also using that theme. I want private browsing to use the default dark theme. That way I can easily tell if I'm using the private window or the regular Firefox window. However, I can't find a way to change a setting to go back to the dark window for private browsing. I've already checked about:config and browser.theme.dark-private-windows is set to true. I even toggled it to false and then back to true but there is no change. I looked at the settings for the extension Firefox Color, and it is turned off for private windows. I looked at the settings under the theme add-ons, but I don't see a setting there to turn it on or off for private windows. Am I missing something?

I am now on the very latest version, 146.0.1, and my private browsing window is still using the same theme as my regular window.

i am unable to see my installed themes and therefore can not use them. the only thing that i can see is "extensions" and "plugins". i looked online for a few hours and have found no solutions that work.

Good Day,

I am leaving Brave as my default browser for Firefox.... Brave is good, just would prefer Firefox. I used to love it.

The problem is...I have a theme on Brave and Chrome that I love dearly. Is there a way to bring that theme to Firefox? I tried using Firefox Color, but it looked awful.

PS: I am the tech Village Idiot so please talk to me in that vein ;)

Thank you and Warmest Regards, Alisa (Stormwolfe)

I encountered an issue when exporting a theme from Firefox Color. When I downloaded the XPI file, it contained only a `manifest.json` and **did not include the background image files** referenced in the manifest. This caused Firefox to reject the theme as “corrupt” when trying to install or import it.

What I discovered during debugging:

1. Firefox Color provides both a **ZIP** and an **XPI** download.

  The ZIP contains the correct folder structure and the background image files.
  The XPI is missing these files entirely.

2. Because the XPI is missing required assets, Firefox treats the file as corrupt.

3. Importing the broken XPI through the Add-ons Manager or uploading it to AMO also triggers corruption or validation errors.

4. I had to manually inspect the ZIP, extract the proper `images/` directory, and rebuild the XPI myself.

5. I ended up using ChatGPT to troubleshoot the issue, confirm expected manifest structure, correct extension ID mismatches, and verify JSON formatting.

The issue appears to be that Firefox Color’s **XPI exporter is broken or incomplete**, producing theme packages that cannot be installed or validated without manual repair.

It would be helpful if Firefox Color’s XPI export included all necessary files consistently and matched the structure found in the ZIP download.

I have a custom theme enabled on my browser. Every time I log into Firefox on a shared university computer my theme is turned off for that desktop aswell as my personal laptop. I have to manually enable it on my personal devises again each time after using school computers. Is there a way to prevent this?