Questions tagged [firefox-profile]

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2 answers
167 views

Ebay doesn't work with tree style tab & imagus in Firefox

There are couple of things, both happened at the same time so I think they're related, ebays favicon stopped displaying in Tree Style Tab and imagus stopped working on ebay. Icon shows normally in ...
1 vote
0 answers
33 views

Possible to centrally deploy website credentials in Firefox?

We would like to deploy the credentials (user, password) of a couple of websites to all Firefox installations in our network. Is there a way to populate the password manager via script, autoconfig, ...
16 votes
3 answers
12k views

Starting Firefox with a specified profile from the dock (Mac OS X)

I have different Firefox profiles for each version I have installed on my system and I know I can specify the profile name I want to use like this: /Applications/Minefield.app/Contents/MacOS/firefox-...
1 vote
1 answer
94 views

Firefox Portable (multi instance) won't load its profile if other Firefox already open

I have a strange problem. I have three instances of Firefox Portable (on a Windows 11 system). I did set the option AllowMultipleInstances=true in the FirefoxPortable.ini file and for the first few ...
0 votes
1 answer
4k views

Create multiple profiles for Firefox Portable on Windows 10

I am using a Firefox Portable version, and I am wondering how can I create multiple profiles? I used pathToFirefoxPortable.exe -CreateProfile profile, which starts Firefox, but I don't think it ...
5 votes
2 answers
1k views

Removing "other bookmarks" from the Firefox bookmarks manager?

I don't know what this folder is for, and I don't know why Firefox forced this folder for everyone. But for me It is always empty because I never use it. I want to go a step further and permanently ...
1 vote
0 answers
161 views

Recover saved passwords from 2018 version of Firefox

I have an old Firefox profile copied from an old PC, which was last in use in 2018. As far as I can tell, Firefox was at version 64 at the time. Various resources talk about creating a new Firefox ...
2 votes
3 answers
3k views

FF: error "You've launched an older version of firefox" - And changes that really impact on profile format

When opening my profile with a different FF browser, I've received the error "You've launched an older version of firefox" and it offer me 2 option "Exit" and " Create new ...
1 vote
0 answers
82 views

How to use Firefox Containers with Python (instead of Firefox Profiles)

I have a python script for an automation tool using selenium that requires using multiple accounts (tens & hundreds) using Firefox. Thing is, I can't login-logout the accounts, so to use multiple ...
7 votes
1 answer
359 views

Firefox "send tab" across different profiles?

I would like to keep my work profile and private profile on Firefox mostly separate (bookmarks, stored logins, browsing history), but still be able to send tabs between devices. Is such a thing ...
0 votes
1 answer
68 views

Bitwarden automatically opening new tab in Geckodriver Firefox window

I'm trying to write automated tests that work on Chrome, Edge, and Firefox using Selenium and the relevant drivers. However, when I run the tests on Firefox, the new browser window opens up the ...
9 votes
2 answers
2k views

Is it safe to drop part of mozilla profile from the backup?

I have the problem, that my backup is flooded by mozilla's firefox' profiles. I have only one user with multiple profiles. The thing is that firefox saves various data in sqlite files etc that just ...
7 votes
2 answers
1k views

Prevent Firefox from unloading specific tabs

Starting in v93, Firefox introduced a tab unload feature. I generally like it, but it always unloads those tabs that are most important to me. Is there some way - either setting or addon - to "...
2 votes
1 answer
485 views

Clearing Firefox Update History

Is there a way to clear the Firefox update history seen in about:preferences > General > Firefox Updates > Show Update History? Even after looking through my whole profile folder and using ...
1 vote
0 answers
84 views

Start selenium node with an specific profile (Firefox)

When I start a standalone selenium test, I can specify the profile path to be used, something like FirefoxProfile(File("/home/selenium/firefox/1234.MyProfile")). However when I use a grid, I ...
3 votes
2 answers
2k views

Start firefox using Another Profile, for specific file type(s)?

I have two profiles. A and B I have made shortcuts to start each profile as follows: "C:\Program Files\Mozilla Firefox\firefox.exe" -p A "C:\Program Files\Mozilla Firefox\firefox.exe" -p B Also, I ...
1 vote
1 answer
932 views

Firefox Setup: how to use existing profile

In order to prepare a classroom for training, I run a Windows batch file which, among other things, runs the Firefox Setup application. There is an existing profile folder which has everything the ...
2 votes
1 answer
528 views

How can I use two Firefox profiles?

I am using Windows 10 and want to use one installation of Firefox with two different profiles for the same logged in Windows user. How can I set this up, so that I may easily launch both profiles?
0 votes
1 answer
33 views

Firefox default list of tabs removed?

Up until recently I was able to set a list of tabs that would open when I open a new Firefox window, but the option to do so seems to have gone away in the last couple of weeks. Was the setting ...
26 votes
1 answer
24k views

Firefox has two default profiles: "default-release" and "default". Which one should I choose?

Guess what, "default" is not my default profile. That would be "default-release". Can I delete "default"? What's the reason for the double profile?
4 votes
4 answers
1k views

How can I determine the add-on that's causing this sketchy pop-up I'm seeing in Firefox on MacOS?

How can I determine the extension that's causing this sketchy pop-up I'm seeing in Firefox? I've determined: The pop-up appears reliably immediately after Firefox starts with this profile. It still ...
0 votes
1 answer
794 views

Allow firefox extension to run in private windows via policy engine

I'd like to allow certain extensions to run in private windows via firefox's policy engine. I found out that one can set this in extension-preferences.json: { "[email protected]": { ...
0 votes
0 answers
560 views

How to write username and password to logins.json, in Firefox?

I have an application that launches a specific website in a specific Firefox profile in order to facilitate some actions. The operator must then login on this website. The application provides the ...
2 votes
1 answer
2k views

Disable Firefox's tab unloading feature

Starting in v93, Firefox introduced a tab unload feature. In a previous question I asked whether it's possible to disable this feature for specific tabs. (That does not seem possible.) After using it ...
1 vote
1 answer
993 views

Generating cert_override file manually for Firefox

I am currently using a self-signed certificate that I don't have the option of re-generating, and every time I install our software on a target machine, the first time Firefox is opened to our ...
0 votes
1 answer
1k views

How can I make launchers for to two different Firefox profiles on Ubuntu?

On my Ubuntu machine, I'd like to use two Firefox profiles simultaneously. I know I can run this command in terminal twice: firefox -ProfileManager -no-remote or run about:profiles on browser and ...
1 vote
0 answers
1k views

How to edit a config in about:config via command line WITHOUT having to restart Firefox to have it applied?

I'm trying to automate a process and want to edit a config in about:config via command line WITHOUT having to restart Firefox to have it applied. How can I do that? I'm under Linux. I tried editing ...
4 votes
2 answers
564 views

Firefox is already running, but not responding

I am using two Icedove (Thunderbird) profiles. I am starting the profiles with following commands: icedove -P "default" %u icedove -P "test" -no-remote --class test %u When I click on a link (URL) ...
13 votes
2 answers
15k views

How to configure firefox built-in pdf viewer

I want to configure my pdf.js in Firefox. Specifically, I want to set the default zoom from auto to something else, say 150%. I found a pdfjs.database in about:config, which has a "zoom":"auto" in ...
0 votes
1 answer
197 views

How to manually remove several bookmarks that show up in search and can not be deleted

I have several bookmarks in Firefox that return in search, are shown as starred, but do not exists. I deleted ALL bookmarks, an these bookmarks still appear in search. They are dead links as well. How ...
0 votes
0 answers
110 views

Starting Firefox with a specified profile, crashes when browser tried to access microphone or camera

Sorry this is probably a very niche bug. I created two different applications to launch Firefox with different profiles and have them use different icons for easy app switching. I followed the steps ...
0 votes
2 answers
669 views

Disable Drag and Drop tabs in FIREFOX

1) Is there a way to disable drag and drop of tabs in firefox and only enable it when I drag tabs while holding the control button? 2) A way to undo the last drag and drop using a keyboard shortcut? ...
1 vote
2 answers
788 views

Why is firefox complaining that it can't open my profile?

I'm trying to get Firefox working with multiple profiles (under Fedora 33). This isn't a new configuration; I've had this all working successfully in the past, but suddenly Firefox seems unhappy. If I ...
4 votes
2 answers
2k views

Is it possible to regenerate firefox's profiles.ini from existing profiles?

I recently accidentally filled my home partition in Ubuntu. Before I realized what happened, I restarted Firefox because it was acting strangely (understandably). Now, when I start firefox with the ...
3 votes
2 answers
1k views

How to set duckduckgo as default search engine using user.js?

I'm trying to set default search engine using user.js, but I have troubles finding way to do it. What firefox option in about:config manages this thing?
0 votes
1 answer
2k views

How to clear cache from multiple Firefox profiles?

I am managing a system with 200+ Firefox profiles, each of which has its own folder with cookies, cache, etc. The cache files for each profile consume around 1GB and the system's hard drive is ...
0 votes
1 answer
85 views

Prevent Firefox from purging open tabs/ windows on updates

Normally, when you close Firefox with a bunch of opened tabs, they get stored in a file called previous.jsonlz4 and are restored the next you open Firefox. However, over the last couple of months, I ...
0 votes
1 answer
119 views

How to open an html file in a given firefox profile?

I have installed multiple browsers. Firefox has multiple profiles. When I have an HTML file, if I select it and hit enter, the file is always opened in the default profile. Right Click and "open with" ...
0 votes
1 answer
854 views

How to reduce website bandwidth usage on Firefox PC using 4G/LTE

In Firefox 73+, how to reduce bandwidth usage? Some websites take up to 5Mb of bandwidth just to load the main page. I'm already using uMatrix and uBlock Origin addons.
0 votes
1 answer
616 views

Shared Firefox Profile (Win10 & Linux) - Browser startup issue after switching OS

I'm using a Notebook with Dual-Boot-OS, using Windows 10 and MX Linux (Debian based). I've created a single Firefox profile folder that is used and shared on both systems (Firefox 71.0): the profile ...
0 votes
1 answer
569 views

How to import extremely old profiles into the latest version of Firefox?

I recently upgraded one of my Firefox installs from version 32 to 72.0.1 due to the recent critical exploit (see https://www.forbes.com/sites/daveywinder/2020/01/09/us-government-confirms-critical-...
0 votes
1 answer
784 views

Firefox bookmark recover

So I completely reformatted my pc and reinstalled windows 10 and forgot to backup my profile. I do not have a winows.old because I formatted. Is there anyway to recover this or am I completely screwed?...
0 votes
1 answer
64 views

Why is an extra, manual page load always required in Firefox for Greasemonkey/uBlock Origin to kick in?

I have some shortcuts to open Firefox, like this: "C:\Program Files\Mozilla Firefox\firefox.exe" -p "Twitch profile" --no-remote "https://www.twitch.tv/directory/game/somegame" When I run that ...
0 votes
1 answer
64 views

How can I contact Firefox support without my login credentials? My login is not working and their Twitter account has not been useful

I was forced to refresh Windows 10, upon trying to login Firefox I found out that I have the password but I don't have the security or recovery code. Both of my email addresses are configured in ...
0 votes
1 answer
217 views

How can I import my Firefox 60.x profile data into Firefox 68?

My Linux distribution recently upgraded my Firefox version from 60.8 ESR to 68.0.2 . That's fine, I guess, but - it turns out FF 68 will not use my existing FF profile! How can I either import my old ...
22 votes
4 answers
14k views

How do you find out what Firefox Profile is running when Firefox is running?

Is there a variable, or an about:config setting, or an add-on that will tell you what Firefox profile you are running when Firefox is running? So I can come back to Firefox like 3 days later and ...
2 votes
1 answer
7k views

How do I reset the Window size and Placement of Firefox?

I would like to reset the size and placement of Firefox, but I do not want to run a full Refresh of my settings. You can no longer just run window.resizeTo in newer versions of Firefox to just ...
1 vote
2 answers
130 views

Firefox Nightly does not start due to my mistake

I using Firefox Nightly. I mistaked that start it during updating. Now, when I start Firefox Nightly, something a window show just a moment then it close immediately. I tried reset profile from ...
0 votes
0 answers
295 views

Passwords From Firefox on Linux

I have all my data in directory, have access to logins.json and the rest of the files from previous linux installation. I'm still on linux. Basic question, how to get to firefox passwords? I can't use ...
4 votes
1 answer
6k views

How can I Refresh Firefox without losing my extensions and preferences?

For the last few weeks, I've been noticing the speed of my web browsing grinding to a halt, and have good reason to suspect Firefox is the culprit of this. This is despite being on the Release (i.e. ...