Firefox Community Forum

I've been using Firefox for a while, and while there are many things I like about it, it has always been a resource hog. In the past I could get around this by just killing Firefox in Windows Resource Manager and restarting, but ever since getting a new computer an upgrading to Windows 11, it's gotten worse. Every couple of days my computer freezes for 10 or more minutes, I'm having to do a hard reboot ever few days, and I'm even bluescreening about twice a month. I'm pretty sure Firefox is the culprit because killing it will usually resolve the issue.

I'm wondering if there is some way to put Firefox in a sandbox so it does not consume nearly all available memory and other computer resources. It is by far the biggest consumer of resources on my system and I do not want to dedicate 4GB+ of memory to an app that is just showing a couple of web pages and playing YouTube videos.

My account was tagged/blocked by Mozilla. The account at issue has 2 factor enabled. I have a landline but now it will only text to authenticate. I had a school e-mail account but they changed and upgraded and dropped all accounts except for new/continuing students without notice (basically everyone until registration). Bottom line my phone was disabled by one vendor and my recovery e-mail by another. To access the microsoft store to correct an issue it required a new passkey. I submitted one. Now mozilla has blocked my password and microsoft requires me to login to contact the store or support but of course my issue is logging in. Around and around I go. I cannot correct a charge, microsoft is free to use my credit, and I have no way to notify anyone that something is amiss with the charge ( paying for a service already purchased, ie. double charged. I also noted a comment about that request being from outside the continental US, but have no ability to contact anyone nor to check/access my account. WTF

All of a sudden I can no longer add bookmarks to my Firefox desktop. At this point I can not even access the "Bookmark current tab." Are there settings that control the Bookmarks section. Thank you

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.

For awhile now I have trouble completing purchases on some websites when using Firefox. I need to open another browser like Edge to complete the transaction. Anything using "Shop with Visa" doesn't work and, for example, I just had to buy tickets on StubHub through a regular credit card submission. I bought them 4 times, got confirmation, and then had the order cancelled because it didn't go through. I called my credit card and was on with StubHub tech support. The final solution was to open Edge and make the purchase and it went through and I had the tickets a minute later. I'm now having the same issue trying to make a reservation at a restuarant through sevenrooms.com Its been sitting on the confirmation page for several minutes. I went into edge and made the reservation and it was confirmed with 30 seconds.

For the past few days, DDG search has been slow. I'm using Firefox version 146.0.1 on Windows 11. Disabling extensions didn't help, but clearing the cache had an effect: The first search after clearing cache is fast (about 1 second), but subsequent searches are slow (about 15 seconds). I was able to repeat this sequence several times. I also cleared cookies, but that didn't seem to have any effect. DDG Search works fine in a Private window. I'm stumped!

Good day,

I'd like to start by thanking the Mozilla Firefox dev team for the newest iteration of the profiles feature. I think it's great.

One area where I think it could use improvement from usability perspective is a way to launch a specific profile via the right-click menu when using the taskbar icon. Currently, using the "Choose a profile when Firefox opens" only gives users the option to select the profile on the initial launch of Firefox. After that if the user opens a new window via the taskbar, the most recently opened profile is automatically chosen.

I managed to find a "hack" to add the requested capability. It seems adding an action to the "firefox.desktop" file in the "/usr/share/applications/" directory works the way I'd like it to.

Modifications to "firefox.desktop" Changed line 12 to: Actions=choose-profile;new-window;new-private-window;open-profile-manager; Added lines 529 - 534 (before Desktop Action new-window): [Desktop Action choose-profile] Exec=firefox --new-instance Name=Choose Profile Name[en_US]=Choose Profile Name[en_CA]=Choose Profile Name[en_GB]=Choose Profile

The end result is a new option available when right clicking the taskbar that opens the new profile selector. Screencaps of options before and after attached. I imagine that users will need to have the "Choose a profile when Firefox opens" enabled for this to work as expected, but would like someone from Mozilla to confirm this.

Would like to request that this option be built into Firefox going forward, so there's no need for users to "tweak" it to get this functionality.

Windows 10 After restarting computer, the bookmarks were missing (I somehow managed to get them back), the Instapaper and Bitwarden icons are missing from the menu bar and video's will not play (but will on play on MSN). While trying to figure this out, the Puzzle/Add-ons icon is also now missing. The instruction in the photo do match what I see when clicking on the Puzzle.

Hello, Randomly but frequently enough to be annoying, Firefox freezes my entire laptop. I have windows 11. It freezes so badly that I have to hold down the on/off button until it goes off. I looked it up outside of Firefox help and, per suggestions, turned off the hardware accelerator. That seemed to work for a little while but now it's happening again with greater frequency. There doesn't seem to be any exact situation that causes it which makes it very hard to diagnose. But it's enough that I'm thinking of looking for another browser so any help would be greatly appreciated. Thank you!

Seit dem 25.12.2025 habe ich meine Lesezeichen und Passwörter, wahrscheinlich nach einem Update oder einer unbeabsichtigten Fehleingabe nicht mehr zur Verfügung. ich möchte meine Firefox-Version wieder auf den Stand vom 24.12.2025 zurücksetzen. Was kann ich tun oder kann man auch telefonisch Kontakt aufnehmen in deutscher Sprache?

I use Copilot 365. Too often when i load the side bar, it will ask me if I want to log into my personal account or my work account (copilot 365). How can I set the work account as the default so I don't keep on getting that message? It seems like the side bar was designed for the personal copilot link which is why it keeps on asking me.

I use Firefox every day at home and at work, and I really need to separate different content across many profiles between devices. Can I access the features of the new profile manager please?