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Machine: Dell Inspiron 15 CPU: Intel i5-7200U @ 2.5 GHz OS: Ubuntu 24.04 LTS RAM: 16 GB GPU: AMD Radeon R5 M445

Yesterday I switched on my PC, opened Firefox and the home page was black. See the attached screenshot. This is not caused by some accidental switching on of the dark mode. Dark mode is clearly off. Neither can I adjust settings to make the Google home page revert to its customary light grey shade.

This isn't a big deal, I know. And it has happened before and in a short period gone away by itself. Maybe it is to do with a glitch in the latest Firefox version. But it has an unpleasant appearance and discourages surfing.

My Chrome Google home page doesn't have this issue.

Can anyone advise on how to fix this unwanted black screen problem ?

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.

146.0 (64-bit) Windows 11 December 11, 2025 Turned on computer this am, Firefox webpage popped up telling me about what is in it's future but now my side bar is black print on really dark background. Help!

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

So, I noticed that the default font Firefox uses on Android when nothing is specified is a sans-serif font. But I would like to use serif.

I've already seen an answer to change the values of "font.name.sans-serif.x-unicode" and "font.name.sans-serif.x-western" in about:config (also "font.name.sans-serif.x-user-def", but that must have been removed, nothing shows up when I search it), but I haven't gotten it to work. I assume I'm not inputting the right value. What should I set as the value to get it to use a serif font? Or is there another way I should do this?

It looks an update occurred but now my bookmarks Column has a white background with white type. I can't read anything there because its all the same color how do I change the background to black?

Hi everyone, I have been using Firefox for only two days, so I am still unfamiliar with some things. I have installed Firefox on my Android mobile phone, and the home page has a shiny orange color that I would like to change to another color. How can I do this?

Thank you for the help

My bookmarks side bar font changed color from black to white, how do I get it back to black?

I can't seem to find where the font color is available to change colors.

My address bar disappeared. I can get it back by hitting F10 but it doesn't stay. How can I get it back and keep it? When I go to the Customize Toolbar setting, the address bar is not there.

Web pages that are supposed to contain emojis are blank. I can highlight where emojis are supposed to be shown but the actual images of the emojis aren't there. about:config font.name-list.emoji correctly contains "Apple Color Emoji" If it is relevant, this has been a bug/issue that has persisted for a couple of months now (can't name an exact date).

Why can't anyone fix this issue? Every day I have to go to about:config, enter "mica" then change from false to true or true to false to get these buttons to show up. It's ridiculous. I am currently using Firefox version 146.1 on Windows 11. Also, please note if I change the windows widget to true these buttons show up and are usable. The next days I have to change the windows widget to false and they show up and are usable so they work whether or not the widget is set to true or false. The problem is having to change the setting DAILY. I should not be having to do this.

My emails used to display in date order but since a Mozilla upgrade they are now grouped as Today, Yesterday and Last Week. Is there a setting to alter this back to one list in date order please?