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Updated to Firefox 152.0.1 and I've noticed about:privatebrowsing now has a very bright garish (subjective) purple background; I'd like to replace this with something else.

Here's what I've tried so far:

• Adding the css in this 2023 reddit post to my userchrome.css
• Fiddling with about:config, per Ty and James' replies in this similar 2022 question
• As a sanity check, directly editing the style element of the body tag in the inspector to check if `background-color: #424242` the css works. (obviously doesn't stick, see first point)
• As a second sanity check, changing the colour in the userchrome.css to fuchsia, as I'd read in older articles there'd sometimes be a flash of colour before something else was applied and bright pink is easier to see than grey
• Changing the Firefox theme from System theme (Auto) to Dark, Light, and then Firefox Alpenglow to see if that would change the background colour (it doesn't).

I do see that Alpenglow theme now matches about:privatebrowsing shockingly well, but it's not my preferred flavour of utilitarian blacks/dark greys.

Tried to show what I'm after, screenshot of about:privatebrowsing in a split view next to about:newtab. Other than above, the only other things in my userchrome.css are some styles to attempt to return curvy tabs edges.

When uploading a file to attach to another app...the upload window opens up in dark mode. I don't like this and I did not change anything but it happens repeatedly. i have checked all options in settings to make sure the light mode is checked. Why is this happening. i did not change anything. Please advise. Thanks

When I move down the screen the tab bar (where it shows what tabs are open at the top of the screen) disappears and it reappears when I move back up to where it should be. I must have switched it on accidentally and can't turn it off. One thing I read said to go to More tools > Customise toolbar > Return to default (this might have been for a different problem but I tried it anyway). When I did that it seemed to work temporarily but then the tab bar disappeared again.

Thanks in advance! :)

It no longer displays the top-level options, such as "Open in a new tab." It just has a black background without White lettering, though it can still be selected.

Who else is still experiencing the problem?

Best regards

M. Jürgens

I used to have many more icons on my toolbar. Since having to upgrade to Windows 11, the individual toolbar icons are huge! I can only get 6 on my toolbar, whereas on Windows 10 I have at least 11. Having to scroll down the bookmark list is time consuming and frustrating.

Suggestions?

I just installed the latest version of Firefox. Now the reload button has gone from the toolbar.

When I click on customize toolbar it is not there either so I can't add it back.

Can someone please tell me how to get his back?

I've tried resetting and that didn't make a difference.

Top browser menu bars seam rather large and take up allot of space how do I reduce their size. Also and this is a Huge issue! The VPN network sign-in keeps popping up but I don't want to use the VPN. I already have another automatically running and it causes huge slowdown. Please help! Thanks!