Questions tagged [firefox-profile]

The tag has no usage guidance.

Filter by
Sorted by
Tagged with
0 votes
1 answer
22 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 ...
0 votes
0 answers
234 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
455 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 ...
  • 424
5 votes
0 answers
406 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 "...
  • 424
0 votes
1 answer
135 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: { "uBlock0@raymondhill.net": { ...
0 votes
0 answers
11 views

How to run firefox with a profile in a custom folder?

I created a new profile for Firefox, and I specified a custom folder (which happens to be on my OneDrive, but that shouldn't matter). I set the profile as the default one to be used without prompting. ...
  • 263
0 votes
1 answer
235 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 ...
  • 105
1 vote
0 answers
414 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 ...
  • 221
0 votes
1 answer
74 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 ...
  • 135
1 vote
1 answer
372 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
2 answers
177 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 ...
  • 3,846
0 votes
0 answers
45 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 ...
  • 101
4 votes
0 answers
198 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 ...
  • 1,920
0 votes
1 answer
922 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
71 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 ...
  • 296
0 votes
1 answer
74 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" ...
4 votes
4 answers
854 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 ...
  • 1,482
0 votes
1 answer
394 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.
  • 508
0 votes
2 answers
459 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? ...
  • 51
0 votes
1 answer
243 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
424 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 ...
  • 305
18 votes
1 answer
14k 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?
  • 876
0 votes
1 answer
58 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
62 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
2 answers
582 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 ...
  • 279
0 votes
1 answer
211 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 ...
  • 7,972
2 votes
1 answer
4k 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 ...
  • 181
1 vote
2 answers
110 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
143 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 ...
  • 1
6 votes
1 answer
1k 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 ...
1 vote
2 answers
940 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?
  • 219
2 votes
1 answer
240 views

Why can’t I see a forward arrow in Firefox 56’s address bar?

This is a screencap from my Firefox 56: The browser itself works, except for one issue: The forward arrow doesn't seem to appear, unless this is a new behavior to Firefox 56 I'm not aware of? I'm on ...
0 votes
1 answer
151 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 ...
  • 57
4 votes
1 answer
5k 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. ...
  • 10.9k
2 votes
1 answer
56 views

Does Firefox 57+ use extensions.* prefs for individual extensions anymore?

Previous to Firefox 57, extensions stored prefs in extensions.* within prefs.js. With WebExtensions, do extensions ever store their prefs within prefs.js? (My limited testing suggests they do not.)
0 votes
1 answer
781 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
209 views

How to create a relative path pointing to the "xxxxxxxx.default" profile in the Firefox Profiles folder?

I created a bat file pointing to my Firefox default profile %APPDATA%\Mozilla\Firefox\Profiles\4aucnox9.default but I really would like to make it usable also for every xxxxxxxx.default profile in ...
  • 548
1 vote
0 answers
469 views

How to change Firefox "open a new tab button" background color?

i am using firefox developer edition. i want to change background color and text color of open a new tab button. i couldn't manage how to.
  • 11
2 votes
1 answer
158 views

How to restore a backed-up profile on a new installation?

My company made us all downgrade our laptops from Windows 7 to Windows 10. On my computer, I had to go through a full, clean installation, so I lost all my saved data (whatever was not copied to the "...
  • 2,560
2 votes
1 answer
2k views

How do I view the sync log for Firefox?

The page about:sync-log shows: Index of file:///home/thufir/.mozilla/firefox/t0nel3vb.default/weave/logs/ How do I get more detail? That directory is empty. Can I receive these logs by e-mail ...
  • 1,390
0 votes
0 answers
157 views

Stop Firefox starting with two tab open

I've been all over the mozilla documentation trying to find out which command line arguments or userpreferences will prevent firefox from starting with two tabs open and also stop asking would I like ...
2 votes
0 answers
148 views

User Style Sheets in Firefox

I would like to adjust the styling of websites on a specific domain in Firefox, but the instructions I found here are maybe out of date? At least they don't seem to be working for me. I have followed ...
2 votes
2 answers
202 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?
1 vote
2 answers
101 views

Firefox reinstalls and enables synchronized addons that I have removed

I want to remove some themes while keeping addons synchronized, because I don't want to have to reinstall them all (the ones I want to keep). But after I remove these themes that I don't want anymore,...
user avatar
1 vote
1 answer
110 views

Firefox: why is the Awesome Bar forgetting my web history?

I've been a very happy user of the Awesome Bar in Firefox. Basically it used to let me find any webpage if I remembered its title (even if I didn't remember the URL). I was always able to find any ...
  • 214
0 votes
1 answer
3k 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 ...
  • 771
0 votes
1 answer
41 views

Is there a way to get different profiles to show up as different program groups in Firefox for Windows?

I've setup some Firefox Profiles and I'm running more than one of them at the same time. Unfortunately, despite being separate processes, they all run together into the same group of tasks at the ...
  • 20.4k
0 votes
0 answers
25 views

Can you run more than one Firefox profile instance at the same time? [duplicate]

I was thinking it would be a good idea to run administrative functions in a browser that isn't in the same firefox profile as the one I use for regular browsing. Is it possible to run more than one ...
  • 20.4k
0 votes
1 answer
232 views

How do I make it obvious which Firefox Profile is being used?

There are security advantages to opening potentially sensitive sites in a separate Firefox profile from a normal one. Is there any way of clearly indicating to a user which Firefox windows are ...
  • 20.4k
1 vote
0 answers
939 views

Lock Firefox Settings and Changes / Addons and about:

I would like to lock my Firefox. The quest is: don't let anyone or anything change something on my Firefox. I would like to block any changes (add-ons, settings, prefs). I created: as.js with: ...
  • 11