Diễn đàn hỗ trợ Firefox

I wanted to change my Firefox font to one that I downloaded on my computer, but I am not very smart and can't really figure out how to change it since it doesn't appear on the list of fonts I can change it to in settings. I have it as a .ttf file if that's relevant.

I had my desktop computer set up so that al the text was bigger on every page website and I had a contrast theme set up that worked for my vision. But today there was an update, and now I cannot read anything in any of the tabs in the navigation bar. I also can't read any of the text in any dropdown menus for the tabs. It did not effect the size of type of web pages, but it is causing me real problems with navigation. How can I fix this?

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.

Since Firefox update,it has changed that much on my desktop ,How do I get RID OF Google search Bar from the Toolbar Section it was nver there before & it is a PAIN Thanks Darryl

My menu bar is missing. The instructions I have is to click on the open application menu, go to Customize, at the bottom click on 'Toolbars' and then on the menu bar to make the change. I have searched using obvious words like 'customize', 'toolbar'. and 'menu bar', but all I get is 'Not found'. Am I missing something here?

My FFox browser has been invaded by PINK EVERYWHERE Get rid of it in the browser. The suggestions do not seem to do anything to get rid of this horrible color. TFFox 151.0.2 64

Black and white works fine in Menu Bar and web addresses when you finally get your act together.

How do I get rid of that new sidebar, the slim section? It is totally wasted space! I just want my bookmarks there without that sidebar taking up real estate. It is totally useless for me! Sometimes you just need to leave things alone.