Firefox Community Forum

The entire window of Firefox has an abnormally low resolution, makes the entire browser seems blurred. This issue occurs after I upgrade firefox to 146.0. I've attached a screenshot, and you can see the Firefox window has lower resolution than the wallpaper and task bar.

Firefox for Windows just updated to v146.0. Now I seem to have an extra bar under my toolbar and address panel. How do I remove it? I can't seem to drag it in the menu customiser.

I have upgraded my Firefox to version 146 and I have a disruptive color of active bookmark in left sidebar. How could I change this color into moderate one - dark grey.

I'm using W11 & Firefox/Mozilla 'Version 146.0 (64-bit)' in ‘Dark Theme’ - my sidebar bookmark in use is now 'highlighted in BRIGHT blue' which is VERY ANNOYING - can I get rid of this feature? Is there a way to adjust the highlight color/intensity? Please let me know. If there is no adjustment possible, please take care of this in your next version. Thanks, John

Hallo, ich habe das problem das mein Firefox browser immer im Vollbild modus startet, das hat er vorher nie gemacht. ich kann es zwar über die F11 taste zurücksetzen aber das ist nicht gut, auch habe ich schon einträge in der about:config gemacht die das verhindern sollten was aber auch nichts gebracht hatt. Es wäre schön wenn man das problem beseitigen könnte.

Ichhabe auch schon alle pluging mal ausgeschaltet um es zu testen hat aber auch nichts gebracht. Vielelicht liegt es ja doch an Firefox selbst.

Es wäre schön wenn mir da jemand weiter helfen könnte.

Danke Olaf

Running version 146.0.1 No new extensions. Recently, when I hit ctrl+b to bring up the bookmarks sidebar, it opens but doesn't display the bookmark correctly. (image #1) The sidebar opens, but everything is whited out. The same thing happens when I try to open the history sidebar, except that the urls kind of show up. (image #2). Also, when I'm on my homepage, there's a white line on the left side that I can't get rid off. (image #3) I also tried refreshing firefox, but that didn't do anything. Does anyone have an idea what may be causing this? Thanks

12/10/25 am my yahoo bookmarks are opaque. they are still there just not visible until you click on them. Later 12/10/25 I rolled back firefox to earlier time and all looked correct again. today 12/11/25 opaque bookmarks again.

Hi everyone, I just set nice custom colors for the websites. Problem is, not every website looks good then, on some it gets messy. Is there and option somewhere to toggle it off, for particular websites, while still keeping the setting on for the rest of the internet?

Best wishes, Techno

I just moved to a new computer. Still using the latest version of Firefox (145.x). But of course I have a much higher rez screen. So I'm looking at many more bookmarks across the menu bar, and they are all very small. As are the tabs at the top of the window. I can not find a way to make these larger in Settings. Grok tells me to work with CSS in the profiles folder, but that doesn't seem to work. (And I bet that every time a new version came out, I'd have to move or remake that CSS file and/or folder.) Is this just the way it is on the high-rez screen, or can someone point me to a solution?

Svp, comment changer la couleur de la barre latérale ?

La mienne était toujours blanche, mais vient de changer à mon insu pour du bleu ...

Merci de m'aider.

Incoming messages on Firefox display is quite small as compared to Microsoft Edge and I cannot seem to enlarge as I do not see a "zoom" icon. When

I highlight the words, they are Arial font size 14 but visually they are not.  How do I zoom and default the window size? Here is a frame shot.

Hi i accidentally adjusted the width of the sidebar too far and now i cant pull it back over. I have tried using the show sidebar button but nothing happens. is there a way to reset the width of the sidebar without having to drag it?

As the title says , im really hoping for a small change that will happen from Firefox team or an addon , since i started using vertical tabs it was the best thing ever happen. however im really just hoping to have the option to increase the icon size of the tabs, i usually just have the icons showing without the name of the tab thing, but my only need is just to have the ability to increase the size of the icon tabs thats it

I don't remember when it started but text that wasn't underlined before such as: Names of shortcuts in new tab view Titles of YouTube videos on home page, and recommended while watching a video (not on the video itself) Reddit titles and usernames (old UI)

I have checked settings as best as I can and tried disabling all extensions but still have the issue.

Hi, I updated to Firefox 146.0 this past week and immediately noticed that the UI elements (scrollbars, sidebar, tooltips, etc) are once again in dark mode; the main websites window and the firefox settings remain in light mode (as set by my user preferences). I've been using browser.theme.toolbar-theme and browser.theme.content-theme to force light mode of all UI elements regardless of theme and as of this last update they have stopped working (editing them to any value of 0,1,2 does not make a noticeably change to the UI). What internal setting changed to stop firefox from using the browser.theme.(etc) settings and what can I edit to get them back? Thanks, Bre