Firefox Community Forum

I recently upgraded from Ubuntu 24.04 to 26.04, using Mate Desktop and Compiz compositor. I am using Firefox from the Mozilla Team PPA, currently 150.0.1. I am running custom kernel built from upstream source, currently 6.18.25. Hardware is a home brew CoffeeLake machine, i7-9700k, 64G of RAM, 2TB WD Black SSD and many TB's of spinning rust, graphics is Intel ARC B50 Pro, ASUS XONAR SE 5.1 Channel 192kHz/24-bit Hi-Res 116dB SNR PCIe Gaming Sound Card. Prior to upgrading Firefox was not 100% occasionally tabs would wedge, now if I get two hours I'm doing good, I've tried disabling extensions and plugins no help. Tried with and without hardware decoding, worse without but bad no matter. Any suggestions how to get stability back?

Hi, since some weeks I'm unable to access some websites with Firefox, cause I get 403 errors, for instance https://www.bexley.fr/. It works well with Chrome on the same computer+same OS, or with a newer version of Firefox on W10 (same computer, dual boot), but with my W7 and Firefox 115.35.1esr I can't access them because of that error. Any idea how I could fix that ? All my computers on W7 and the same version of Firefox are concerned. Thank you.

Hello, I'm on Firefox Nightly 152.0a1 running on a freshly installed new Windows 11 version. I've used Firefox exclusively for my whole life and everything has always been smooth until a few days ago. Firefox started (and continues) to freeze for a second or two pretty regularly, each time I use the search bar for example, open a new tab, while a page is loading (which is very slow at the moment) but also scrolling on a page for example. During the freezes, the temperature of my CPU also increase by approximately 20°C. CPU usage in task manager shows that it is quite high, 10x higher than Edge that I opened for comparison only : https://i.imgur.com/enuMMZl.png.

I have sought the internet for advice but nothing changed this behaviour. I updated my computer through Windows Update, my drivers through Driver Booster, I disabled hardware acceleration on Firefox, I removes all AI components with zoicware/RemoveWindowsAI on GitHub, I changed dom.ipc.processPriorityManager.backgroundUsesEcoQoS on about:config to false but nothing cured the problems.

I'm out of solutions and I don't know if I should be waiting for another Nightly build (usually there's about 1-2 a day but 152.0a1 is sticking since a few days and there isn't any update available since, seemingly), if there's others energy economy parameters I could play with on Windows 11 that I don't know about or if something else is in the way. Any help very appreciated, thanks!

Dear all, i use firefox 150.01 and receive a message Adbocker activated and some content is not shown correctly. Can you help to disable all adblockers

best regards Wolfgang

I have been quite unable to view comments on www.telegraph.co.uk. The page simply does not appear when I click 'comments'. I have done a Firefox back to defaults refresh which was successful but no joy. After a look around the internet for solutions I installed Chrome which worked first time and has continued to. Why does Firefox fail? Thanks

Hi, I just upgraded from Windows 7 to Windows 10 home. One of the things that has changed is that my downloads don't stay. After closing Firefox the download is there but if you click on it it says "File missing or moved".

During the last week or so I have encountered the issue that one or more of my Firefox profiles keep resetting after every update.

I noticed there's couple of threads with similar issues already but the generic profile restore instructions are not helping at all since it seems that Firefox is actually wiping the default profile on every update.

I'm running Firefox 150.0.1 for Arch on CachyOS.

After an update when I click on my default profile in the selector, I get greeted with a completely fresh Firefox install. There's no extensions, it's not logged in to my account and no browser history. The edit profile button shows a pop-up "Firefox is already running but not responding--".

If I try to switch profile via the Account button on top, I get another pop-up stating "Your Firefox profile cannot be loaded. It may be missing or inaccessible."

I do not have the clean session after closing Firefox set on.

I followed the instructions to see if I can restore or recover my profiles.

• I can find three profile directories under $HOME/.cache/mozilla/firefox
• In $HOME/.config/mozilla/firefox there are matching linked directories for the profiles
• The broken profiles seem to have broken link, ie. no target in /run/user/1000/psd/<profile> is not found

Searching for the profile that should be under /psd/ doesn't seem to yield any results, meaning it's been wiped after the update.

Firefox has exceeded all previous mess-ups by upgrading itself today (apparently sometime when my battery went flat and was then left recharging), and this happened despite my account being set for 'upgrades to be only installed manually'. Now every bookmark, all passwords and all the settings of my Home Page have been erased. I have no 'restore point' to resort to as supposedly all this info is synced to the cloud. But I can find no method to retrieve any of these files let alone one to restore them. This is a nightmare. Please help.

To be honest. Firefox is starting to be a big pain to use. I'm starting to see more and more of this screen where it say's "Be careful. Something doesn't look right" Even when i go to the advance and say proceed. Nothing happens and i'm getting no where. I know many of the sites don't have anything to do with asking for credit card, Scam or even having popup's. I test the sites in other browsers and there work without any issues. But Firefox is starting to lock me out of many sites due to this. How can i make this stop. As i used Firefox for many years.

The sample that is in the screenshot is a Anime data base that i have also used for years. But today shows this. But was working fine yesteday. What is going on and how can i fix it. So i can start using the browser that i love on the sites i want to.

bold text'I am so fed up with these updates loosing my passwords and data, why ? All my settings are messed up and last time it took two weeks to get everything back, why? I give up total idiots for releasing updates that are sub par!