Firefox Community Forum

There is a black box on the top left corner whenever firefox is maximized. This problem appeared when I got my new computer screen (Asus 27" TUF Gaming VG27AQ1A, 170Hz WQHD). My old computer screen (23.6" VE247H LED, Full HD, 2ms, 10M:1) didn't have this issue.

Any help how to fix this issue?

My firefox on my Mac will not open in full screen mode. It use to open in Full screen, but now no matter what I do when I close it out then try to reopen it, it opens in half screen mode. I set it to full screen mode in the setting but no luck. I tried deleting it and re-downloading it. I tried every tip online but nothing works.

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Yesterday morning i had sidebar bookmarks. Then when I turned my desktop back on in the evening it was gone. I have a few "tabs" on top which I do not like at all. I can't find my bookmarks, other than recent ones. How can I get my bookmarks back on the sidebar? I need some sort of fix please, to get my bookmarks back on the sidebar where they were.

Hi,

I recently set a custom background image for the Firefox new tab page (and possibly the homepage), but now I’d like to remove or replace it.

I’ve already tried:

   Going to about:config and enabling the following:

       browser.newtabpage.activity-stream.newtabWallpapers.customWallpaper.enabled → true

       browser.newtabpage.activity-stream.newtabWallpapers.ui.enabled → true

   Searching for a gear icon or any UI options on the new tab or homepage – but nothing appears.

I also checked about:preferences#home but there are no visible options to manage background images.

How can I remove or change the custom background image? I’d appreciate instructions, config paths, or a file location where I can delete the image manually.

Thank you! p.s. I'm stuck with a background image that makes my shortcuts unreadable and it's driving me crazy. 😅

Some extensions, like Bitwarden or Notes, seem to have added their own shortcut icons between the settings cog and the other functions below the tabs, with seemingly no way to remove them? I already have them in my regular toolbar / extension overflow, which has much more space available, so I don't see the point of why there's duplicate ones in the sidebar taking away tab space?

Prior to Firefox 137, I could adjust this setting all on my own via about:config `extensions.unifiedExtensions.enabled` and setting it to false meant I could hide this puzzle piece extension button.

However, as of Firefox 138 this about:config setting no longer works. Was the option simply renamed or was the feature just completely removed?

Would appreciate any help, thank you kindly.

I am losing my vision and any screen I can switch to "dark mode" is a real blessing. I've contacted Earthlink on multiple occasions about providing a dark mode for Firefox and they've said basically "Go pound sand!" The only solution they provided has been to use Edge. I get physically ill even bringing up the POS called Edge. Is there a way I can force Earthlink web mail into dark mode with some kind of widget or coding change we can make in the background of Firefox to get this to happen? Everything I'm currently using is dark mode but this issue with Earthlink.

I am still being plagued by the same rainbow loading bar on Firefox, no matter what device I use, yet you play ignorant like "we don't know why, maybe it's a extension you're using" yet I am not the only one who has experienced it, the post from 2011 never had a solution that worked. It is like LGBTQP promotion shoved down my throat. Why can't I remove this satanic Loading/Progress bar? Why? Why? Why?

According to Mozilla and all other online instructions for changing Firefox wallpaper, one must click on the Settings icon (pinwheel) in the upper right corner of a new tab. There is no such icon anywhere on the new tab screen. There is no wallpaper to select under the Settings menu (three dashes) in the top right hand corner. I have the latest version of Firefox. What version are these instructions for? And how does one change the Firefox wallpaper? Firefox is my default browser in Ubuntu 2204 LTS.

I cannot make fire fox work at all.for me. I need the file, edit, history, bookmark tool bar back. I'm pleading with you. Please I BEG you to uninstall the upgrade. Please let me have the Firefox I had last week. I,m 88 and will die before I ever!!!! i can't make anything work.I have over 5,000 bookmarks. I write for a few dollars to partly support myself. Right now I'm out of business. Where is the invisible email address? I have been using FIREFOX since it came out. i can't go through your circus. A browser should have a high degree of instinctive coordination, it shouldn't be similar to experts cryptic calculus level, when your totally unfamiliar with the level of calculus I'm sorry, I won't be able jump through hoops..

Why is this font so small, I have tried everything so much so that I have the about.config on my bookmark tool bar, I have tried the extensions that do not work, zoom makes everything too big, increase the font on my desk top. When I go into the about.config ....To increase the font size in the Firefox address bar, you can modify the layout.css.devPixelsPerPx setting in about:config or edit the userChrome.css file to apply custom CSS rules none of this works. as you can se from the picture the font is SUPER TINY!!! I have changed the setting on my computer for the desktop also and nothing.

I made a custom theme for firefox and submitted it to AMO. It's approved, but I have no idea how to actually apply it. I don't see any option to install or use. What am I missing? How do I actually use it?