Firefox supportforum

When I use firefox on my main display (1920x1080 144h 16:9) in full screen there is a noticeable white line in the bottom, not using full screen fixes it, but a pain in the ass to resize it all the time. I tried using the browser on my secondary smaller display (1920x1080 60h 16:9) and there is no white line. This seems to be a bug, how do i fix it?

Every solution which I have found for Firefox 89 "Proton" so far which moves the Tabs Bar below the Navigation Bar (AKA "address bar"), with the Menu Bar above it, does NOT move the Tabs Bar below the Bookmarks Bar. The Bookmarks Bar appears to be overwritten and blank, and occupies space below the Menu Bar, Navigation Bar, and Tabs Bar. This empty space separates the three bars which are implemented and the content of the currently-selected tab below it.

Currently, my userChrome.css file is a copy posted by Cor-el (?):

@namespace url("http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul");

/* TABS: below nav-bar - fixed for 108+,113+ */

/* ROOT -variables */
*|*:root {
  --tab-toolbar-navbar-overlap: 0px !important;
  
  --tab-min-height: 25px !important; /*override density*/
  --tab-min-width:  80px !important; /*override default*/
}

/* TABS: below nav-bar - no longer needed in 113+ *//*
#navigator-toolbox toolbar:not(#nav-bar):not(#toolbar-menubar) {
  -moz-box-ordinal-group: 10 !important;
  order: 10 !important;
}
#TabsToolbar {
  -moz-box-ordinal-group: 1000 !important;
  order: 1000 !important;
}
*/

/* TABS: position */
#TabsToolbar {
  display: block !important;
  position: absolute !important;
  bottom: 0 !important;
  width: 100vw !important;
}

/* for 107 and lower - disable this rule in 108 and newer *//*
#tabbrowser-tabs {
  width: 100vw !important;
} */

/* navigator-toolbox: PADDING */
*|*:root:not([chromehidden*="toolbar"]) #navigator-toolbox {
  padding-bottom: calc(var(--tab-min-height) + 1px) !important; /*ADJUST*/
  position: relative !important;
}

/* TABS: HEIGHT */
#tabbrowser-tabs,
#tabbrowser-arrowscrollbox,
#tabbrowser-tabs .tabbrowser-tab {
  min-height: var(--tab-min-height) !important;
  max-height: var(--tab-min-height) !important;
}

#tabbrowser-tabs,
.tab-stack,
.tab-content {
  height: var(--tab-min-height) !important;
}

/* TABS: APPEARANCE */
#TabsToolbar {
  height: var(--tab-min-height) !important;
  margin-bottom: 1px !important;
  box-shadow: ThreeDShadow 0 -1px inset, -moz-dialog 0 1px !important; /*OPTIONAL*/
  background-color: var(--toolbar-bgcolor) !important;
  color: var(--toolbar-color) !important;
}

/* indicators - hide  */
.private-browsing-indicator {display: none !important;}
.accessibility-indicator    {display: none !important;}

/* window controls in full screen - hide*/
#TabsToolbar #window-controls {display: none !important;}

/* caption buttons on tab bar - hide */
*|*:root[tabsintitlebar]:not([inFullscreen="true"])
 #toolbar-menubar[autohide="true"] ~ #TabsToolbar
 .titlebar-buttonbox-container {display: none !important;}

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Evidently, the text editor for this website does several things to the above original text that, frankly, seem unnecessary and undesirable. The .CSS file is just an unformatted text file, so what is the problem with simply copying its contents and pasting it in to the body of this post?

Which is also to say that I do NOT have a clue as to what any line in the file is meant to do, what effect it has, why it is even in the file at all, or why it is written in the way that it is. So DO NOT tell me that I "CAN" create a Cascading Style Sheet on my own when I cannot even modify one that has been provided.

On the face of it, something is missing from the above CSS text. What change needs to be made to the above content so that the Bookmark Bar will appear between the Navigation Bar and the Tabs Bar??

Thank-you very much for your time and attention to this request for assistance.

Firefox updated and now my tabs are above the address bar, I hate it. I have went through all the information I could and created a new chrome folder, downloaded the css and changed user preferences but it sets the tabs to the bottom of the screen not just below the address bar. I think I need a different set of code for the css but cant find a copy. Does anyone know what to do?

I downloaded Firefox on my Chromebook using the instructions found here: https://support.mozilla.org/en-US/kb/run-firefox-chromeos However, I have not been able to update it since. It says updates are disabled in Firefox itself, and I have not been able to fine what files I need to update via Terminal to get the most current version. (I have been able to update other files through Terminal). Can someone please point me in the direction of how to update Firefox if installed in the manner described in the link?

After the update to 89.0 the Shortcuts have taken an 'visual upgrade' that makes all the images chosen for them half as small as they need to be because they need to have a 'cute little grey border' almost as big as the image between it and the corners of the square.

I have twenty four shortcuts, that I differentiate at a glance through the images without having to stop to read the text on each one and this stupid change is really roasting my mellows, I have taken a look and haven't found any option to revert it to the previous look, anyone knows any way to do it or do I have to install the previous firefox update and stop updating and give up security updates to save myself from this stupid change?

[Offensive content removed by moderator. Please read Mozilla Support rules and guidelines, thanks.]

Thanks to Proton expanding my Bookmarks Menu off the bottom of the screen, I was re-arranging my bookmarks folders. While wondering which of my folders I had to prune, I noticed another in-built redundancy. The entry "Manage Bookmarks Ctrl+Shift+O" appears twice, at the top and the bottom of the menu. Incidentally the bottom entry is misaligned (Firefox v89 on Windows).

Is there a particular reasons for this duplication? Can I remove either of these entries?

Does anyone know any way to force Firefux [Ver 89.0.2 64bit] to stop the repetitious and constantly annoying pop-up that flashes on open, restart, or randomly appears, reminding me to once again update the apparently flawed software. I just updated yesterday!!!! Can I not trust that the programmers know what they're doing and that the system can actually work as expected without the intrusive proof that they screwed up again?! This is the worst business decision to make these things interfere with my workload. Every firefuxn day there's a new update alert!!! It makes me not trust this browser...

Running Firefox 89.0, Win10. I usually bookmark all tabs in a window to a named folder under Bookmarks Menu, for example Folder1, Folder2, Folder3, etc. Recently, the dialog was stuck to a previous folder, lets say Folder2, as the default, instead of the normal default of "Bookmarks Menu". If I bookmark Folder4, it will want to put it under Folder2 as a subfolder, unless I manually change it to Bookmarks Menu, but the next time the default will go back to Folder2. After trying to manually set the default back to Bookmarks Menu, without success, I tried renaming Folder2, thinking the default will go back to Bookmarks Menu. This didn't work, Firefox chose the new Folder2 name automatically. So next I opened all the tabs in Folder2, deleted the Folder2 in the bookmarks manager, thinking that if Firefox couldn't find Folder2, it would fallback to the old default of Bookmarks Menu. Now when I try to bookmark anything, the save dialog is blank and the only thing I can click is the cancel button. How do I fix this? I have hundreds of tabs open, since the session manager I used to use is no longer supported, I was in the process of saving windows into bookmark folders. I'm worried that restarting Firefox will lose some of recent changes to my open windows/tabs state since the last time Firefox "autosaved?" my session

Thanks