Firefox Support Forum

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).

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 ?

Hi, I have been using an extension that helps with my school's website for years and now for some reason it has been taken off the firefox store. It's still up on chrome and edge and all of the Dev's other add-ons are still up, its only this one on firefox. I emailed the dev and he sent me the zip file and I've been having to install it as a temporary add-on with the .json file every time i open firefox and its getting really annoying after a year of doing this. How can I just install it permenantly?

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.

Firefox 103 screws with website zooming if you use the "Make text bigger" accessibility setting in Windows. 150% for example now zooms in a lot more with the accessibility setting in Windows set to 120%.

How do I undo this change so that 150% is 150% and not bigger than 150%? I had all my frequented websites set up how I liked it and now this comes along and messes it all up >:V at the moment it seems like 120% Firefox + 120% Accessibility is similar to what 150% in Firefox was like but it's not exactly the same. I've now gotta go futz with zoom levels for each web page I frequent again to find what looks most comfortable for each one.

Also this change greatly modifies consistency when it comes to the granularity of zooming. For example, what is 100% zoom when Accessibility is set to 120% so that I can avoid filtered scaling being applied to pictures? Why is the in-browser percentage indication not accurate with the level of zooming actually being applied?

The zoom level I choose is no longer the zoom level applied, there is now a multiplier in effect. So 50% isn't 50% anymore, 60% isn't 60% anymore, 70% isn't 70% anymore, 80% isn't 80% anymore, 90% isn't 90% anymore, 100% isn't 100% anymore, 110% isn't 110% anymore, 120% isn't 120% anymore, 130% isn't 130% anymore, 140% isn't 140% anymore etc.

A website that looked good at 133% can no longer be viewed at 133% if the Accessibility setting isn't also 133%.

Not a fan of whoever decided to implement this seemingly without a way to turn it off.

In my Firefox settings, I have PDF files set to "Open in Firefox".

When I click on a PDF file, Firefox DOES open the PDF in a new browser tab, but the PDF ALSO downloads to my desktop (both!). How can I stop it from downloading?

Extensions no longer shows on Customize Toolbar tab on the latest version 111.0. I had Dark Reader and SoundFixer on the toolbar before and I can no longer add them back.

I'm using Firefox 112 on Windows 10. The toolbar contains icons for several extensions that I don't want to see. I click on the >> menu and then Customize Toolbar. That opens the Overflow Menu. It says, "Drag and drop items here to keep them within reach but out of your toolbar." I try to drag one of those extension icons onto the Overflow Menu. It won't go. The dragged icon picks up a circle with a line through it, indicating that this is not allowed or not working.

How can I use the Overflow Menu as advertised, to remove unwanted extension icons from the toolbar? Or is there a good workaround?

Before update when I clicked in PDF viewer toolbar download button it opened a screen to open with, right now it only download a file. I want it back. I have firefox as pdf viewer, but sometimes I need to open file with Acrobat DC, that's when I did click download button. It works on other computer like before, it is before firefox update.

Hi! I recently made the switch from Chrome to Firefox and Im liking it aside from this one thing. When Im watching a video in full screen, moving the cursor to the top doesnt pop up Macs top bar (File, Edit, ..... battery, time).

This sounds like a banality but I mainly watch videos while getting ready, working etc, and I really need to see the time! Im used to always keeping the cursor at the top to see it. I searched around in settings and forums but didnt find any fix. The only solution seems to be to not use full screen which I think we can all agree just sucks in a major way.

Im using MacOS Monterey 12.3.1 and Firefox 102.0.1. Is there a way to fix this or nah? Any info much appreciated!

I have Firefox 103.0.2 and have enabled the use of style sheets in about:config. I have a CSS style sheet userChrome.css that is giving me color at the top heading and in the tabs, except for the active tab (is white)

I'll list the CSS and see if you can give me some guidance in what i need to do to put some roundness in the top corners of the tabs. the UserChrome.css file .titlebar-color{ color: AccentColorText; background-color: AccentColor; } .tab-background{ border-radius: 5px 5px !important; margin-bottom: 0px !important; } .tabbrowser-tab:not([selected=true]):not([multiselected=true]) .tab-background{ background-color: color-mix(in srgb, currentColor 5%, transparent); } menupopup > menu, menupopup > menuitem{ padding-block: 2px !important; min-height: 0px !important; }

root{

--arrowpanel-menuitem-padding: 2px !important; }

The whole top is solid color (same as Windows color, which is ok by me. However, it would also be nice if there were a dividing line or separation between the menu on top and the "tabs" below. Any ideas would be great! Thanks!! Vern

When I search "translate" into the address bar the first option is www.translate.com instead of just searching it on google (which is what I normally do). This happened after I searched the term and a little pop-up asked if I meant to go to the website instead. I accidentally clicked yes and do not know how to change it back. I would like to be able to type "translate" and have the google results show up first. Any help is greatly appreciated.

Hello, in past versions of Firefox, I was able to follow the steps on this page to set a custom HTML file on my PC as my home page for new tabs: https://peterries.net/blog/firefox-ubuntu-local-file/

I have Firefox 107.0.1 now and it's not happening. When I open the browser from scratch, I see my custom home page file. But when I open a new tab, I just see a blank screen. If I then click the Home icon on the toolbar, I do see my custom HTML page, but I don't want to have to click that button for each new tab.

Right now, in my settings, I have the URL to the page set as the custom URL for the HTML fiile, like this:

file:///home/peter/Documents/homepage/peter-home-homepage.html

That works. And I also have followed the steps on that blog post to customize my /usr/lib/firefox/autoconfig.cfg and my ../firefox/defalults/pref/autoconfig.js files. That's no longer working.

Did something in a recent version change? Is this no longer supported? Thanks for any ideas!

OS - Ubuntu22 Firefox - Default firefox on ubuntu22 (Mozilla Firefox 103.0.1)

Use case - 1. Custom profile folder (named prof1) contains pref.js and chrome folder with custom css file. 2. prof1 is created in -> "/customData/profiles/prof1" 3. The folder "/customData" has full rwx permissions and is owned by $USER (not by root)

Output -> 1. When launching firefox mentioning the profile -> "$ firefox --profile /customData/profiles/prof1"

The browser does not load, but there is an error box saying Profile Missing Your Firefox profile cannot be loaded. It may be missing or inaccessible.

Questions -> 1. Is it possible to load firefox profile from root directory ? 2. If custom profile folder is created in "/home", then it is launching and working perfectly. How is this possible when the permissions and owner is same as the one in "/customData"

With the upgrade to Firefox 106 on Mac, Private browsing windows open with a dark theme by default. How do I enable the light theme for Private browsing windows?

I use Private browsing at work for website testing, and the dark themed tabs / UI are much harder to read and use than with a light theme.

I have the browser.urlbar.trimURLs switched to TRUE but still as you can see in the screenshot it shows the complete URL with the protocols. I do not want this, I want it to hide it and only show the main link like youtube.com instead of https://youtube.com