Komunitné fórum Firefox

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.

I'm using Ubuntu 24 with the XFCE desktop. I'm installing the debs straight off packages.mozilla.org (currently 143.0.3).

Firefox's title bar, and window manager buttons do not have the same look and feel as the rest of my windows. And I have no idea where they're coming from.

They do change appearance in response to picking the different styles in Settings > Appearance, but the changes appear to be limited to colors only. The minimize, maximize and close buttons look differently than on all other windows, and they are more spread out than in, and the shade button is nowhere to be found.

I'm attaching two small images, the first one is the standard set of widgets all other windows have, and the second one is Firefox's odd duck. I could not find anything in settings. "Extensions And Themes" shows that "System theme" is enabled. Well, it's coming up a bit short...

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?

as is the text I read takes only 1/3 of the available width of the screen. In reading mode I can widen that, but many pages lose a lot in reading mode. How can I widen the text in normal mode?

I have a chromebook with linux enabled and installed firefox according to mozilla's instruction - via the sudo get-apt command. The cursor changes from the default to a very small adwaita. I've spent hours googling this issue and everyone I've come across had used some third party repo or was trying to shove in their own custom cursor theme. Literally all I want is my regular cursor back, and I have no clue why mozilla would have a specifically set cursor for their browser instead of just having it default to os. I don't really know what I'm doing here, but I cannot begin to state how tired I am of messing with this dead-end issue.

I really enjoy using the recently added sidebar, but I want to put it away temporarily while watching videos. After some digging around, I finally found the simple keybind for expanding it (ctrl-alt-z). With the 'hide tabs and sidebar' option toggled, I'm able to open and close it at will, which is exactly what I wanted.

However, whenever I do this, the sidebar snaps to what I assume is its default size (picture 1). I usually use it at minimum size (picture 2,) such that only the icon of each tab shows. I tried to readjust it, but it seems to not snap to this size anymore unless I disable 'Hide Tabs and Sidebar.'

For now, I'm just going to temporarily toggle that setting on when I want it out of the way, and manually fix things later. But, is there a way I can have the best of both worlds? Can I make the 'default' the sidebar snaps to the minimum size I usually use from Picture 2?

Thank you in advance.

I am using Linux Mint in Dark Mode. Most emails which come through are easily read in the panel. See attached.

But others are practically unreadable in Dark Mode. See attached.

How do I adjust the settings so that the unreadable ones become readable in the panel. Thank you in advance or any help.

Hi,

When I first open Firefox, everything will be normal. But after opening a menu (e.g. dropdown from the bookmarks bar, or downloads menu next to address bar) for the second or maybe more time, the menu will show up in the wrong location, maybe halfway across or down the screen. I am usually able to bring my mouse over to where it is shown and click the buttons, although sometimes the buttons show a hover animation when my mouse is where they are *supposed* to be and I must reopen the menu to be able to interact with the buttons where they are actually shown. Contracting the window fixes the problem, but it comes right back when I maximize the window. It will also happen with tooltips, such as the name of a tab when I hover over it.

I am using Fedora 42 GNOME Wayland with two monitors, one at 125% scaling and other at 100% scaling; the issue happens on both, but independently of each other. I have tried enabling the Firefox setting for fractional scaling, but nothing was fixed. Any way to make menus show up where they are supposed to?

I can't find the adjustment for my screen size. It's overrunning all the edges of my monitor making it impossible to see my panel on top and bottom. Is it in my computer or is it firefox?

I would be interested in modifying the behavior of Firefox's urlbar / omnibox such that domain names are displayed in “reverse notation”, e.g. org.mozilla.support instead of support.mozilla.org.

From a cursory look at Firefox's setting, I couldn't find any browser.urlbar.* setting that relates to reverse domain name notation.

I also spent some time looking at add-on development documentation. Albeit being unfamiliar with the technology, it seems to me that the omnibox permission in the manifest.json file will only grant the add-on APIs to extend the functionalities of the bar, rather than allow the add-on to modify how the bar's contents are displayed.

I would be interested to know if there might be a way to achieve reverse domain name notation that I might have missed, or whether this is impossible to do.

If this is the wrong place to ask, I'd be glad if you could suggest what forum/mailing list may be appropriate for this kind of questions.

Latest update on Ubuntu force reset the sidebar. Reminder for those that do not want, the process to remove it is:

• Go into about:config in the address bar,
• search for sidebar.revamp,
• set it to false.

From this Reddit thread.

Mozilla. Please do not reset the `sidebar.revamp` for those of us that have gone to the trouble of removing it. Thanks.

Hi, is there a way to customize sidebar to move the controls to the top or bottom of the sidebar? With sidebar open there is a lot of wasted space with just 3 icons - settings, history and sideberry buttons. Not really an optimal situation.

Attached screenshot and another picture explaining where I would like to move the buttons. Either top or bottom of the sidebar is preferable than taking the side.

FF147.0.1 64bit Linux

I have about:config > toolkit.legacy ... stylesheets set to true, but how can I determine if FF actually 'loaded' the file <profile>/chrome/userChrome.css ?

Alternatively, is there a css tweak that is known to still be working in FF147?

After latest update 136.0, a TB icon showed up in the 'system tray'. I'd like to hide it, I have no use for it. Browsing the settings including the advanced preferences yields nothing useful.

Hallo, ich benutze immer den aktuellen Firefox unter Debian Trixie. Ich habe jetzt das Problem das sich das Fenster meines Firefox nach einiger Zeit der Untätigkeit von selbst verkleinert. Sprich, wenn ich einen Button drücken möchte dann muss ich mit dem Mauszeiger eine Zeile höher drücken als der Button liegt. Meine Treiber sind alle aktuell und ich habe früher dieses Problem noch nie gehabt. Wäre euch für eine Hilfe dankbar. mfg Schorsch