Diễn đàn hỗ trợ Firefox

Hi - Firefox placed an 'Old Firefox data' folder on my desktop and I am unable to delete it. I'ver tried third party apps, logging in as administrator, command line delete, uninstalling FF but am still stuck with it and my network settings are wrecked so I can't re-establish connection to the internet on that machine. Anyone with any suggestions as to how I get rid of the 'Old Firtefox data' folder ? Many thanks...

Starting with Firefox 141, I noticed the profile folder is locked down by Mozilla by way of folder permissions, to the extent that I (as administrator) cannot even take ownership of the folder. Even after I completely uninstalled Firefox and restarted my computer I can't take ownership of the folder, nor can I delete it - access is simply denied. I have to literally boot up with a Linux Live distro to be able to delete it. This is invasive and NOT OK!!

I work with multiple profiles that require backups and be copied. I also have a 'master profile' which is set up to co contain all my settings and addons - when I require a new profile I simply copy it over and voila. Not even this is possible anymore, as Mozilla has locked down the entire folder tree, I can no longer copy a new profile into C:\Users\*USER*\AppData\Roaming\Mozilla\Firefox\Profiles.

I also cannot copy existing profiles (and therefore also not able to backup) out of C:\Users\*USER*\AppData\Roaming\Mozilla\Firefox\Profiles - access denied. This is uncalled for by Mozilla. I have complete removed Firefox from my computer, including registry entries, and even after that I'm still denied access and cannot even delete C:\Users\*USER*\AppData\Roaming\Mozilla.

The only solution to to any of the above issues is to either reboot into Windows Safe Mode or bootable media of another OS. But this is totally impractical - Mozilla cannot expect of me to stop all my work and restart my PC every time I need to perform any of the above mentioned issues.

This is highly invasive by Mozzilla - to not even be able to delete a profile folder without any trace of Mozilla on my computer???? Come on, FIX THIS !!!

Will Mozilla please provide the solution?

I have an account for standard support release versions, I am now using extended support release version 140.7.0 and a popup notification keeps nagging me to make a new profile. How do I do this?

I regularly back up my profiles folder (desktop running Windows 10) and observe a steadily-increasing number of files. Where/what are they? If cookies, I really don't want to delete all cookies, but neither am I interested in manually going through the list and deleting individual ones. I realize we're not talking about a major storage space issue (~ half a gigabyte) -- just curious.

I was positively surprised recently when the new Firefox profile manager (about:profilemanager) was introduced. https://www.tech2geek.net/how-to-use-the-new-updated-profile-manager-in-firefox-2025/ is an article about that.

However, I thought it's just a new visual UI with an in-browser switcher for the existing profiles (that I already had setup). However, it does not appear so.

The differences I see:

1. 1. 1. old profile management

• was managed by `about:profiles` or when starting FIrefox with `-P`
• is saved in `~/firefox` and the `profiles.ini` clearly and quite obviously mentions them there, so it's easy to manage them.

I also found this old support article: https://support.mozilla.org/en-US/kb/profile-manager-create-remove-switch-firefox-profiles

1. 1. 1. new profile management

• automatically asks on startup if more than one profile exists
• is managed by `about:profilemanager` or with the Firefox burger menu
• seems to be saved in `~/.mozilla/firefox/Profile Groups` (Linux path here) in some .sqlite files, and I do not quite understand the format. Not mentioned in `profiles.ini`.
• also, when you change something here (even like opening a profile?), you cannot open `about:profiles` anymore, because it says "Some Firefox process has made changes to your profile, […] you need to restart Firefox", only after a restart further changes would be possible, which I find quite confusing but it also indicates somehow the features belong together?

And this seems to be the new one: https://support.mozilla.org/en-US/kb/profile-management#w_whats-the-difference-between-profiles-and-multi-account-containers

1. 1. Questions

• What are the differences here (I may have missed)?
• How can the new profile feature save so few files? Is it technically called "profile groups"?
• And the most important: How can I migrate an old profile? (In order to use the new features and GUI etc. I quite like)

This afternoon, I clicked on a link from an email and for the first time got a choose a profile pop-up. I do not want this; I have read info on Mozilla and elsewhere about its purpose but it doesn't say how to just stop the pop-up - there should be an option just stop the pop-up because I don;t want to have to choose amongst options. I have started copy-pasting the links in emails and going to Chrome and will seriously have to reconsider using Firefox of this continues. I don't want to have to type about:config or anything - this should have been an opt out or opt in thing and I want out. Thank you for your help.

I created multiple profiles with the new [management] feature. Amazing, I've been waiting for it for years!

If I open all my profiles I can distinguish them since they all have a different icon. I can also pin all the profiles (Keep in Dock) to the MacOS dock.

When I quit all Firefox instances, I would like to be able to immediately jump back to the desired profile.

Instead I get multiple Firefox icons (without the icon profile, that disappear after I quit Firefox). I find this inconvenient.

Since the new "feature" profiles came out, I now always have this "originalprofile" in the browser (in the title bar) and in the Windows taskbar... It's really annoying.... Now my question is, how do I get rid of it again... on 3 more pictures, Firefox language is German...

As the title says, when i go to about:support, and click the open profile folder, i wanted to install a customization to allow me to edit the default tab background, but for some reason i do not have admin privileges in that folder, i can't access anything, i can't edit anything nor create a new folder, even rename it. It says that my own computer does not have admin privileges inside that folder.

I am an academic. I use Canvas. When I am in Canvas and I try to open a document in it from Firefox, what I get are solid black pages. I do not have this problem with Canvas in Chrome or in Edge. I really don't want to use those Browsers. I actually have this problem with every PDF I try to open from all sites. This is a recent problem. But if I cannot correct it, I will have to use other Browsers.

E. Wray Bryant, Ph.D. [edited email from community support forum]

I'm setting up Firefox on a new computer. I haven't done this for a while and the interface has changed, so I'm not sure how it works.

I want to move my Firefox profile to a directory in the Documents library to simplify backup. Following the Mozilla instructions I found, I opened about:profiles and clicked the Create New Profile button. I deleted the contents of the directory that Create New Profile created and copied the contents of the default profile directory to it. The last step is to tell Firefox to use my new profile instead of its default.

But the about:profile page lists three profiles: default-release, default, and my new one. The first two have a Set as default profile button; the last does not. So it appears that I can tell Firefox to use the default-release profile or the default profile, but there's no way I can tell it to use my new profile. I can only Launch profile in new browser -- presumably something I'll have to do every time I run Firefox.

This makes no sense. How can I tell Firefox to use my new profile -- not to launch a new browser with it, but to use it, period? If I can't, why can't I? Every version of Firefox I've ever installed up to now allowed this.

Also, the default-release profile section of about:profiles has the note "This is the profile in use and it cannot be deleted." So it appears that Firefox uses the default-release profile instead of the default profile as its default profile. What is the default-release profile? Why isn't the default profile the default profile?

I'm trying to configure Firefox on Mac using our MDM. The goal is ultimately to control a bunch of settings, but I'm trying to start simple by just installing the 1Password extension.

When I deploy this .mobileconfig file, nothing seems to happen to Firefox. I made this by following the example at https://github.com/mozilla/policy-templates/blob/master/mac/org.mozilla.firefox.plist but it doesn't seem to work and I am not sure how to debug.

<plist version="1.0"> <dict> <key>PayloadContent</key> <array> <dict> <key>PayloadContent</key> <dict> <key>org.mozilla.firefox</key> <dict> <key>Forced</key> <array> <dict> <key>EnterprisePoliciesEnabled</key> <true/> <key>Extensions</key> <dict> <key>Install</key> <array> <string>https://addons.mozilla.org/firefox/downloads/latest/1password-x-password-manager/latest.xpi</string> </array> </dict> <key>PasswordManagerEnabled</key> <false/> <key>ExtensionUpdate</key> <true/> </dict> </array> </dict> </dict> <key>PayloadEnabled</key> <true/> <key>PayloadIdentifier</key> <string>e441f671-148a-4039-a45d-12514e6d92b2</string> <key>PayloadType</key> <string>com.apple.ManagedClient.preferences</string> <key>PayloadUUID</key> <string>e441f671-148a-4039-a45d-12514e6d92b2</string> <key>PayloadVersion</key> <integer>1</integer> </dict> </array> <key>PayloadDescription</key> <string>Installs the 1Password Firefox extension for ease of use.</string> <key>PayloadDisplayName</key> <string>1Password Firefox Extension</string> <key>PayloadIdentifier</key> <string>77dc9f8b-aaee-4f91-93ba-30b81cc6a31b</string> <key>PayloadOrganization</key> <string>Exogee</string> <key>PayloadRemovalDisallowed</key> <true/> <key>PayloadScope</key> <string>System</string> <key>PayloadType</key> <string>Configuration</string> <key>PayloadUUID</key> <string>77dc9f8b-aaee-4f91-93ba-30b81cc6a31b</string> <key>PayloadVersion</key> <integer>1</integer> </dict> </plist>

We've used Quikbooks for 10 years + on our desktop. After learning the Desktop QB is no longer supported, we attempted to purchase - access, QB online. This required us to return the desktop version, be credited the purchase amount, as we were prohibited use until this Process completed. Now complete! As Techsoup processes have changed, all the back-forth, just not sure. Prior to QB Icloud purchase- need to confirm we didn't already make purchase & guidance re How to access- use online QB version. PLEASE Advise. Thanks

When printing history from my bank account there are transactions missing in between pages and extra bank pages. The bank of course says it's the browser. it does it on Edge as well. Please help

With the new update came profiles, which is pretty useless for me. However, it bugs me that the firefox icon on the taskbar now has the profiles' star on it. Is there a way to remove this?

I opened up Firefox just now to find that my two profiles currently in use are completely inaccessible. I was faced with a "Create Profile" dialogue that launched me into a brand new profile with none of my settings, keybinds, cookies, extensions, anything. Despite this, I know for a fact that my old profiles are *still* there. As you can see my profile folders are right there, with all their data intact as far as I can tell from inspecting their contents, yet they are not accessible from the about:profiles.

Please help me. What is happening with the profile manager? How do I access those old profiles?