Firefox Community Forum

Firefox on Windows 11 has suddenly and without my apparent action started automatically hiding the tab bar and the address bar to give all the vertical space to the current tab. I do not like this (I have big monitors and I want those bars always visible)

How do I turn this one and why did it turn on in the first place?

Thank you for having the Q&A facility.

With the latest update, no matter if I've got it set to light or dark, the sidebar text and background are almost the same color. It's unreadable. There is no way to change just the sidebar, and it ignores the light/dark setting.

A while ago I made some changes in about:config and also in my ~/.config/gtk-3.0/gtk,css file so as to control my scrollbar and slider -- making them more visible:

/* Log out, and back in for these changed to take effect: */

scrollbar { background-color: #cccccc; } scrollbar slider { min-width: 20px; }

/* dark green: pointer is not in the active window */ scrollbar slider:backdrop { background-color: #00aa00; }

/* green: pointer is in the active window but not on a slider */ scrollbar slider { background-color: #00ff00; }

/* dark red: pointer is hovering over slider but mouse button not pressed */ scrollbar slider:hover { background-color: #aa0000; }

/* red: slider is active */ scrollbar slider:hover:active { background-color: #ff0000; }

/* No effect: */ /* scrollbar-color: blue white; */

... it works half the time. Some pages obey the above settings but other pages continued to show a scrollbar about a mm wide with the slider so faint as to barely be visible. So, in 'about:config' :

widget.non-native-theme.scrollbar.size.override 30

... at least made the narrow scrollbar a bit wider. But how to change it's color? Doing this in a file:

~/.mozilla/firefox/5dqk4533.default/chrome/userContent.css:

html,body{

   scrollbar-color: yellow blue !important;
  }
.... doesn't change anything.  Is there some complete guide to controlling the srollbars?  Nice if it could all be handled in one place of course.

How in the heck do you increase the size of the UI font? I have a 1440P monitor and the TINY size of the UI font makes it nearly impossible to read the text on the menu buttons, I have lean forward and squint to read it because they are so damn small. I can't find anything in the settings to make the UI text larger. It is as if some dummy hard coded the UI font size so it's impossible for the average person to find out how to change it. It makes no sense whatsoever.

And please don't tell me to increase the zoom in the Windows settings, because that screws up EVERYTHING else...

Another thing that is driving me crazy is how do you set it so that scrolling with the mouse wheel is smooth and not jerky? When i scroll with the mouse wheel, instead of smoothly moving the page up or down, it JERKS a couple of lines at a time. This is the only browser that it does that in. I have smooth scrolling ON in the mouse settings on my computer but for some reason, only Firefox is doing this.

After the most recent update, all of my Firefox tabs, bookmarks, and general UI fonts have gotten larger. Is this intended or a bug? There are not options that I know of to reduce the size of the fonts to how it looked previously either.

hello. i downloaded firefox from official void linux repo, and have issue with font rendering or smth. in settings option "Allow pages to choose their own fonts, instead of your selections above" is enabled. don't have same issue in any other gtk apps on my system.

https://support.mozilla.org/en-US/questions/1491135 2/5/25, 11:25 AM

Please change the switch in your code back to normal. Its just a tiny switch! normal is=task bar context menu by right clicking on the task bar WITHOUT "title bar". Is this so hard? And why is such important thing not fixed in 7 months?

Hi there! The New Tab page looks great with white text, but Firefox 140.0.4 thinks my wallpaper is white, so text should be dark. I can change the body class to "activity-stream darkWallpaper" using the inspector and it works fine, but how make this change permanently?

After tinkering with about:config (shouldn't have...) the background of every page that does not specify a body background color turns the color of my theme background color.

Using the firefox color pipette says its white, but it clearly isn't.

The theme i have is dark, making any page that expects the background to be white unreadable (without DevTools -> Body -> background-color: white)

I haven't been able to find the config that fixes it.

I am using Firefox v140.0.1 Snap on Kubuntu 25.04, Kernel 6.14. Since the Firefox update in the past couple days, the mouse cursor has started appearing huge and slightly blurry (as though the image is scaled up) in Firefox and nowhere else. The size is visually annoying, and occasionally difficult to know exactly where I'm clicking (trying to move the caret in a text box for example). It also appears to be a different style from the main desktop cursor, the shape and color are ever so slightly different, but this may already have been the case and I simply didn't notice because of the previously small size. Firefox doesn't have its own built in cursor settings that I can find, nor obey the system cursor settings. I have a high DPI display so perhaps it is being over-compensated for? e.g. both the system and Firefox are scaling the cursor up, assuming the other hasn't done it already, resulting in a cursor that's too big.

Next to the field where a current HTTP:// is entered, there USED TO BE a button allowing me to add another empty search page. Than has vanished. How do I restore it please?

Greetings,

I'm using & viewing the most updated Firefox browser on a Windows 10 Pro (64 bit), desktop, 24" monitor screen.

With the current updates, the list of bookmarks in my Bookmarks Bar has become very small, skinny & overly spaced, hampering readability.

Though I have learned how to enlarge the bookmarks font size, using the "about:config" & updating the 'layout.css.devPixelsPerPx' attribute, the font still remains very skinny & overly spaced.

Is there an attribute that I can change to alter the Font Style (for example to "Semi-bold") & Spacing of the bookmarks list? If so, please be kind enough to describe the process & I'll give it a go.

If a Firefox Development Team member happens to be reading this post, I'd like to put in a request to add some Bookmarks Bar "FONT EDITING" tools accessible via the browser SETTINGS dialogue, to accommodate readability on ALL the various OS & computer form factors that have proliferated these days.

Thank you, Bruce