Firefox Support Forum

In Settings/Applications, have "JNLP file" set to "Use Java(TM) Web Launcher (default)". This is used in Oracle's Agile to view documents. In previous versions of Firefox when selected, the file would open using Java to display the document from Agile. As of Firefox 97, now only "Save File" or "Cancel" options are offered. What happened that this functionality has been removed?

Hi, I'm a Firefox user since around 2004. Whenever I used FF i always opened multiple windows of FF. At some point Mozilla came out with Tabs. I don't use them and as a matter of fact I use the option under settings to open links in a new window (not tabs). Always have, Why? Habit I guess from the times I first starting using FF. I seriously don't use Tabs. I would like to Remove the Tab Bar from FF because of this reason and it frees up a lot of visual space on my browser. I've spent hours reading/searching/trying on "how" to remove or at least hide the Tab Bar. Waste of time so far, so I decided to Post the Question.

How Do I Hide or Remove the Tab Bar in FireFox?

Thanks For Everyone's Help in Advance:-)

Firefox 112.0 running on Windows 10 64-bit laptop with a small (pixel geometry) display screen has unnecessarily large padding (white space) around each bookmark as I navigate bookmarks on the bookmark bar.

I believe this was a change instituted around version 89 (in a nutshell, I could see more - twice as many? - bookmarks listed within a bookmark folder with version 88/before. The vertical whitespace between bookmarks within a folder is excessive and makes it much more necessary to scroll within a (long) list of bookmarks in a folder when looking for one.

There was a procedure posted in the discussion below on how to set and enable "compact density".

Bookmark Padding in New Firefox Versions 2 https://support.mozilla.org/en-US/questions/1369996

The procedure below was attempted - browser.compactmode.show enabled, browser restarted, however, I cannot fin "Customize Toolbar" and "compact".

"go to - about:config search - "browser.compactmode.show" - change to TRUE , then close that window go to - Customize Toolbar at the bottom of that page, there a box called Density. Click that, you'll see "compact (not supported)" Apparently, it IS supported because I chose that. (it looked like it ignored my choice) After I closed Customize Toolbar, the bookmarks were compact spaced again. Exactly how I need them."

Is this fixable/solvable?

I'm using Firefox 85.0.2 . . . I was doing this (below), to customize my header and footer, but in this version of FF, I no longer see this in Options - only in: about:config . . . keyword "footer" . . . there, I would have to change it for 5 different ways of printing (to printers or to PDF)

I need to get rid of printing the URL in the footer - many times, it's too long, and I don't need it.

Where did the Page Setup option go?

I see in the current Print Options, you have to go to - More Settings / Margin / Custom - to see those. Why would they put this so many levels down?

It used to be: File / Page Setup / Margins & Header/Footer . . . "Customize" Headers & Footers:

Option 1 (left) . . . there are two leading spaces:

 > > &T
 > > &U . . . &D . . . &PT

Option 2 (left) . . . get rid of the ">"s, and just have the two leading spaces:

 &T
 &U . . . &D . . . &PT

Why is there not a simple means to take a link and pin it as a tile on my home page? I've expanded the number of rows displayed which as an odd history of my browsing, yet the latest links I've visited are not there - meaning the link to the location I would like to pin. Seriously, the entries in the rows (other than previously pinned links) is a hodgepodge. It might be useful if there was some evident logic to the items included. It is disappointing the number of times this question has been posed and the "answer" is to display more rows. Similarly disappointing - an old knowledge base article that says to click the 3 dot icon next to address bar for Firefox on android - would have been handy had such a control appeared in the latest version of Firefox I'm running on my Mac.

Hi,

Often the ctrl + m (mute tab) shortcut gets in my way while using the browser as i use this shortcut in something else. I would like to know if it is possible to disable that.

Thanks. (Message written using Google Translate)

I have bought a new pc with Windows 11 home pre-installed and set Mozilla Firefox latest version as default browser ...the issue i am having is placing add-on extension shortcut icons on toolbar. I installed Norton Safe Web and this installed ok and is listed in extension control panel and when i click puzzle icon Norton Safe Web is not shown under manage shortcuts nor can i see option to Pin to Toolbar. Have tried several attempts but still get nowhere.I uninstalled Mozilla Firefox...restarted pc ... did a fresh install of Mozilla Firefox without altering any settings..re-installed Norton Safe Web and still cannot see option to Pin to Toolbar.Clicking the gear icon does not help Have i missed a step somewhere ?

I turned off Firefox updates because I'm sick and tired of having to download a new version at least once a week. So now I face a different problem. Every time I turn on Firefox I'm greeted by this annoying, unwanted pop-up spam message:

https://i.imgur.com/qFtXPXr.jpg (also see: attached image)

I want to disable this. I do not want to update, and I do not want to be reminded to update. Please don't waste both your and my time by replying "but you have to update". No I don't. I have nothing sensitive on this PC so even if I got infected by a virus or whatever because it's not the newest version, nothing bad will happen to me. At least nothing I consider as bad as having to update every single week. If there is no solution possible, I will simply stop using Firefox and use a different web browser instead. Thanks.

I work on kubuntu 20.04 with plasma 5.18.8 desktop environment. I have a QtCurve-based custom application style, which I almost match with css for GTK apps. Firefox has to be an exception by itself! Not only that, but it changes my ability to customize its interface, from time to time and even changes access to such ability, on some updates.

My scrollbar customizations in userChrome.css and userContent.css do not work any more (other CSS changes still work, for menu/addressbar/tabbar/bookmarksbar orderint and tab styling). I had to resort to settings in user.js file, to get a 20px width scrollbar, suitable for my big screen, but... it gets very wide when I increase the focus, on some webpages and becomes very ugly! Furthermore, I cannot make sense of the proper use of "ui.themedScrollbar*" settings and the scrollbar and its slider result in the same color. These are my settings in user.js:

user_pref("widget.content.gtk-theme-override", "backwater"); user_pref("widget.non-native-theme.enabled", false); // Use GTK-3.0 gtk.css: set to false user_pref("toolkit.legacyUserProfileCustomizations.stylesheets", true); // Use userChrome.css & userContent.css: set to true user_pref("widget.gtk.alt-theme.scrollbar_active", true); user_pref("widget.non-native-theme.scrollbar.size.override", 20); // If nothing else works, fix scrollbar width to 20px user_pref("widget.non-native-theme.gtk.scrollbar.round-thumb", false); user_pref("widget.non-native-theme.gtk.scrollbar.thumb-size", 1.0); // originally 0.75 user_pref("widget.non-native-theme.gtk.scrollbar.allow-buttons", true); // it was true, anyway... user_pref("layout.css.cached-scrollbar-styles.enabled", false); user_pref("layout.css.color-mix.enabled", true); user_pref("widget.non-native-theme.scrollbar.style", 4); // wide scrollbar theme: set to 4 user_pref("ui.themedScrollbar", "#bad1f5"); user_pref("ui.themedScrollbarInactive", "#668cc4"); user_pref("ui.themedScrollbarThumb", "#e4e4e4"); user_pref("ui.themedScrollbarThumbHover", "#e4e4e4"); user_pref("ui.themedScrollbarThumbActive", "#668cc4"); user_pref("ui.themedScrollbarThumbInactive", "#bad1f5"); user_pref("browser.dom.window.dump.enabled", false); user_pref("extensions.ui.sitepermission.hidden", false); user_pref("fission.experiment.max-origins.qualified", true);

Either with the "ui.themedScrollbar*" settings or without them (and cleared from the prefs.js file), the scrollbar and its slider result in the same color, unless I (tryingly) click on some place on the scrollbar outside its slider; then I can see the slider, _only_ for the duration of the mouse-down event (which causes up or down page-hight scrolling).

The default, very thin scrollbar, as well as my modified wide scrollbar with invisible slider are both useless to me! I have even tried fx-autoconfig (https://github.com/MrOtherGuy/fx-autoconfig) to make the scrollbar CSS work, but no result. At this point, I am considering switching to another browser, despite the trust I have to mozilla, for my data and privacy.

Is there a way to remove recent bookmarks from the "hamburger menu" (says "Open Application Menu" on hovering)? The bookmarks there seem to only show the most recent bookmarks added and there's no way to organize those or delete them without also deleting the bookmarks from the main bookmarks menu, which can be organized. There should be a way to not show bookmarks that are private bookmarks just because they've recently been added. I couldn't find an answer to this anywhere in support -- though I might not have been searching the right terms. Any and all help would be much appreciated. (Also, apologies if I put this in the wrong category. Wasn't sure what to use.) Thanks!

I've been trying to get a video to play for over a day now, drm-controlled content is checked but firefox won't install the widevine plugin, it just keeps saying that it will install shortly. I even deleted the cache in hopes to fix the problem, but it did nothing. What can I do to fix this? Also, and I don't know if this is a related problem, some websites just don't show up. It will say they are loaded but all I get is a blank screen (dailymotion and instagram so far).

I am in the USA. Every time, on any page or website that I need to provide credit card info, when I click in the box to type in the CC numbers/expiration date/CCV, a window pops up as it should (for auto-fill) with my credit card information. In that window, I can scroll over the different credit cards, click on the one I want to use, and it SHOULD auto-fill into the box where the numbers would normally be typed in. Now, the window still pops up and I can scroll over the credit cards and choose one, but when I click on any of the particular credit cards, the auto-fill doesn't work. The boxes in "settings" are checked to allow auto-fill. It worked for months, then just stopped. Thanks for your assistance!

Hello, so I am not very experienced and recently discovered how to customize Fire Fox using the userChrome.css file. I went through all of the steps that are required in order to do this. I set up a folder called chrome in the directory /Users/my name/Library/Application Support/Firefox/Profiles/x1oheo82.default-release To test if it works I wrote this into the userChrome.css file: @namespace url("http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"); /* set default namespace to XUL */

1. TabsToolbar{ background-color: #FF0000 !important }

and set toolkit.legacyUserProfileCustomizations.stylesheets to true After restarting Fire Fox I saw that nothing changed. I double checked if there was a hidden file extension or if I might be in the wrong directory. I tried different code to see if there was some error in the code but nothing changed. I watched countless tutorials on You Tube and tried to find answers on google but nothing that I did seemed to help. I don't know if it has something to do with the operating system I am running or if it is a limitation of my computer hardware (I am running Fire Fox on an m1 mac).

The mute icon only shows on hover and takes up 50% of the tab size so I'm constantly accidentally muting tabs without realizing it and silencing video calls and the like. The top Google result for this issue -- rightfully yelled in all caps because this is an absolutely horrid UX -- says to set browser.tabs.showAudioPlayingIcon to false, but that does absolutely nothing in FF 100.0

The Firefox desktop browser default font is replacing all fonts on some websites, only title fonts on some others, and then leaving others unchanged. It seems random, and I can't stop the default font from taking over randomly on most websites no matter what I do. This was not happening until today, and no browsers or general MacBook Air preferences were changed between today and yesterday when I last used the browser on desktop.

Under Firefox Preferences » Fonts » Advanced, I've made sure to check the box to "Allow pages to choose their own fonts instead of your selections above", and I've unchecked it, and I've re-checked it, and the default is still overriding fonts on most websites.

I've quit and restarted Firefox 3 times.

Help!

Firefox does not print the right edge of web pages that are made in landscape mode.

I set FF to "Fit to page width" but it does not print the right edge. It's cut off.

And there is no Orientation option available. Not sure if that has any significance because it supposed to "Fit to page width" anyway.

What's the work around to fix this?

I use layout.frame_rate 1 to block animation, and to replace painful partial scrolling with clean jumps. I can't use an intermediate frame rate, such as 3-30 fps, due to the seizure risks, or a high frame rate, such as 60 fps, due to migraines when hit by "smooth" animation, "ease in-out" animation, zooming animation, parallax animation, partial scrolling with one part of the window sliding alongside another, etc.

about:config involves some other frame-rate and frame_rate settings;

gfx.display.frame-rate-divisor starts at 1

layers.offmainthreadcomposition.frame-rate starts at -1

layout.expose_high_rate_mode_from_refreshdriver starts at true

layout.frame_rate starts at 0, which defaults to monitor settings; I've reset it to 1 (1 frame per second).

layout.throttled_frame_rate starts at 1

What are these and what do they do? I've tried looking them up, and see a bunch of posts about browser diagnostics, or *increasing* frame rates, or the like.

My muscle memory has me constantly clicking just slightly to the right of where the furthest right tab is. It feels weird stretching alllll the way right or alll the way left. I've tried both spots and it just feels unatural to me. Obvioulsy I'll get used to it after a while its just I'd like it to be back to where I'm used to it being.