Firefox Community Forum

How do I remove the pop up blocker on Firefox for certain websites? I am doing an online course and each introduction for each chapter has a short video that pops up but as soon as that happens Firefox sends a "Critical error" message then the video stops so I thinks that's happening because pop up blocker is turned on and I just dont know how to turn pop up blocker off for specific websites only like this one I am using for my study course. How can I turn the pop up blocker just for this one website so that this doesn't keep happening?

Mozillers,

I depend heavily in my environmental and other work on Firefox and am grateful for its ability to restore previous tabs when my laptop, not infrequently, stops working abruptly.

Now the much-used bookmarks have disappeared. A search site states promisingly:

"To restore Firefox bookmarks, use the built-in backup feature by going to Menu > Bookmarks > Manage Bookmarks > Import & Backup > Restore, then select a dated backup or a manual file (like a JSON backup) to bring back lost bookmarks..."

But my Firefox's Bookmarks drop-down menu has no Manage Bookmarks option. PLEASE, what must I do?

Elsewhere I managed to find this file which apparently contains recent bookmarks:

"C:\Users\User\AppData\Roaming\Mozilla\Firefox\Profiles\unk14jlv.default-release-1647366062305\bookmarkbackups\bookmarks-2025-12-26_95_4IdGtYxezJpwuH1UIiT1bRwe1K6bcGO8rv0mqa9rUWU=.jsonlz4"

But attempting to open it with Applications\firefox.exe (default) accomplishes nothing.

FOOL-proof instructions would be wonderful. Thank you.

After a few days of having no internet connection, my account was disconnected from my PC and saved passwords disappeared. After signing in to my account again and syncing, lost passwords were not recovered. I need help to recover them.

Hello. i noticed that my shortcuts are missing. i went to settings to check if it's enabled (check mark) and it is in fact enabled. tried to reset my computer and the shortcuts are still not there. on the main firefox page there is actually no shortcut icons on there...at all. all of the options in settings work with the exception (of course) the shortcuts. i would like to know why this is happening...thx

For months I've been trying to clear my saved form data as I put in the wrong email address, and when using saved form data sometimes don't notice it's wrong, so replies disappear into the ether.

Under Settings/Privacy & Security/Clear browsing data I have cleared Everything with all check boxes checked, and multiple times just tried the Saved form info checkbox. The wrong email refuses to die along with the related form data.

It is infuriating. Maybe you can correct it manually, or actually wipe it for me? The INCORRECT email is 'bongoots@yahoo.co.uk'. The CORRECT email is 'bongboots@yahoo.co.uk'.

Many thanks, Bruce Clarke

I'm getting announcements of a virus threat that purports to come from Mozilla Firefox. Usually one or all three of the attached small windows that say: 1. "Viruses Found. Antivirus notification. via https+++d512ucanaffc739fe48g.cgm-defender.pro" With a Dismiss button. 2. Attention! Click here to secure your data!. via https+++d512ucanaffc739fe48g.cgm-defender.pro" With a Dismiss button. 3. "System Warning!. Click here to remove them! via https+++d512ucanaffc739fe48g.cgm-defender.pro" With a Dismiss button. I have run full scans and offline scans with MS Defender, but these warnings still appear. Is this legit? I suspect these are a virus of some sort. Either way, how do I deal with this?

In version 146.0.1, or perhaps even earlier, I noticed that if you set a Primary Password to log in to the browser, you can reset it and log in simply by clicking the "Cancel" button. This allows you to access all of your user tabs and links. I hadn't noticed this before. It defeats the purpose of setting a Primary Password. I noticed similar issues in the Tor browser, but you can't set a Primary Password there at all, even though the feature is there, and it's built on the Fire Fox engine. Please fix this issue. No buttons should allow you to log in without entering the correct Primary Password.

O, woe, I feel like Jacob Marley wailing in torment, ha! My correctly-set selection of "Always ask you where to save files" still does not function in 146.0 on Windows 10 after I have gone through every permutation of settings, updates, restarts, etc., I can think of. Why does it always every time only automatically download to the download "Save files to" location (which one MUST set with no option to not set a download location). I have even selected "Ask whether to open or save files" on the "What should Firefox do with other files?" section. I want to be asked each time where to download just like Firefox used to allow and still falsely promises. Am I doing something wrong, or is it a vast Left Wing conspiracy with which Firefox is colluding to oppress people who want choice over their lives like me? :-)

Trying to download 3.3 GB file. Around 500-600 MB download then fails and displays either, "pause" (permanent) or "failed - cachefly.net". Have tried several times over several days w/o success.

I'm changing computers. I want to upload my browser's bookmarks to a file. Then I can clear it for the next person to start from scratch. So far, I can't find a tab to make it happen. Please help. Thanks.

As of 12/9/25, Firefox seems to now prevent Theme add-ons from working if there is a contrast setting configured in Windows configuration. (Version 146.0) Previously, this allowed a very aesthetically pleasing view. I would greatly enjoy having that option again. Thank you.

Hello,

How can I remove all my saved passwords from Firefox Sync? On my desktop, I went to Menu > Passwords > Three Dots > Remove all passwords, and they're gone. However, on my mobile phone, they're still there. So the sync functionality is borked. The question is, are the passwords still on Mozilla servers, or is just the sync to my mobile buggy?

Even if I were to delete my FF Sync account, for good measure I'd like to manually delete all passwords from it first though.

Any help welcome.

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)