Firefox Community Forum

I have Firefox installed and pinned to the taskbar. When I click it, it immediately goes to a download Firefox page instead of opening. I then open another tab to get into g mail or anything else. I can then close the download tab and continue. This is most annoying. I tried uninstalling and reinstalling which works but then lost all bookmarks and the answer there was to go to old Firefox and restore, which I did and that worked , however, the download page came with as well and this time in a different more colorful version that is quite long.

I'm using Kubuntu 24.04. I saw it more than once. Firefox is frozen, no WiFi for example, and I have to kill it via terminal. After that it is not possible to retrieve the session (3 or 4 tab groups plus ~20 tabs)

thank you for any help.

Almost every time I open up Firefox it has a little pop-up under the tool bar asking "Open Firefox every time you restart your computer?", and every time I select "Not now", which I guess is intended as only a temporary answer. How can I permanently say "No" and keep this from popping up constantly?

if I had 30 bookmarks, there was no problem to sort all by name, if I´ve had 40 bookmarks I must sort it 3 times but then it works. But now I have more than 50 bookmarks and I testet it every update but it dosen´t work, why ?

I have my browser.sessionstore.max_windows_undo in about:config set to 60 – it's been like this and working fine for several months.

It's set to this high number because I use an assistive technology which creates a fresh pop-up every time I deploy it, and Firefox treats it as a browser window closure when I close the pop-up. Consequently, I can easily rattle through well over 25 window closures in a day.

It's not necessarily that each window contains dozens of tabs and copious data, but nevertheless Firefox still treats it as a window 'within the meaning of the act'!

I just went to reopen one closed window from a couple days ago which did contain many tabs (partly why I closed it in the first place), only to find that the 'recently-closed windows' context menu is now only showing 20 windows (18 of which are the aforementioned pop-up assistive technology windows)

The really vital window that I want to reopen is not showing.

I've double checked in about: config and the browser.sessionstore.max_windows_undo is still set to 60 windows; nothing has been altered or reset.

I updated Firefox to 147.0.4 yesterday evening, but the problem existed before I updated Firefox, and is still in evidence since updating.

Two questions:

1) Why is the Recently Closed Windows context menu not showing the full number of windows it has been successfully doing with no problem now for months? I used to have to scroll down to access the full extent of the 60, but they were always there.

2) Why has it arbitrarily changed to 25 windows?

3) [I lied – Our chief weapons etc...] Is there a way that – given about:config still implies that the most recent 60 windows are retrievable – that I can access beyond the 25 windows limit that are currently showing as reopenable?

Thanks very much

(And yes, I already have things like OneTab and Tab Session Manager add-ons, but disabled those just before closing the important window, because I was trying to locate which add-on was draining the CPU. I assumed my 'recently-closed windows' buffer of 60 would suffice while I disabled the add-ons.)

I have around 20 tabs in my firefox browser about tarding they all keep refreshing at the background when i am using firefox,its causing my Laptop battery drainage

I manually clear all youtube cookies. I have these youtube exceptions. After going to youtube, then checking "Manage Cookies and Site Data" I still see Firefox saved a youtube cookie.

Thank you

Images appear fine, but lately I cannot see embedded videos on websites when I'm browsing. This is a recent change (past couple of weeks).

I can view the same videos using another browser, so I think this is a firefox setting possibly.

Scroll bar issue on some websites When accessing certain websites, the scroll bar disappears (for me, it's on the right side of the screen), and it's no longer possible to view the page content, even using the keyboard's scroll keys.

DETAILS Only affects certain websites Firefox is up to date No blocking extensions are installed Access is possible with another browser Thank you for your feedback, Sincerely, F. Vernoux

barre de défilement pour certains sites Lors de l'accès à certains sites la barre de défilement disparaît (pour moi à droite sur l'écran) et il n'est plus possible de consulter le contenu de la page même avec l'utilisation des touches de défilement du clavier; PRECISIONS Concerne seulement certains sites Firefox version à jour Pas d'extensions bloquantes Accès possible avec un autre navigateur Merci de votre retour, Cordialement, F. Vernoux

Hello,

I'm using lasted version of Firefox Desktop and also using Kaspersky VPN. Whenever vpn is deactivated I cannot connect some websites. I just clicked and nothing happens. But if i tried with activated vpn, it's connecting.

I was trying to solve this problem but cant find solution.

PS. I did try on other browsers(Edge and Opera). I just connecting whatever is vpn status.

Hi, on my macbookpro. Searches take minutes to load, websites take minutes to load. Youtube takes minutes to loand, but once loaded and I start a video, it runs for a couple of minutes then video suddenly stops and I have to wait for couple of minutes for the video to continue again and it keeps repeating, all my other web browsers (Safari, Chrome, etc..) works perfectly. It also uses sFirefox is bascially unusable! I am running the latest version.

I also saw a NoScript XSS Warning:

NoScript detected a potential Cross-Site Scripting attack

from https://www.youtube.com to https://accounts.google.com.

Suspicious data:

Error: Timeout! DOS attack attempt?,(URL) https://accounts.google.com/ServiceLogin?service=youtube&uilel=3&passive=true&continue=https://www.youtube.com/signin?action_handle_signin=true&app=desktop&hl=en&next=%2Fsignin_passive&feature=passive&hl=en

after my laptop crashed (again did so over 100 times) but this time all history is gone, could not restore last session/s - can't log into my accounts (any) - can't set it to an earlier date (e.g. yesterday) to eliminate whatever the problem is (am not an IT expert, so I don't know how - just know that it is possible) - I have tried for 4 hours - no avail - I really need the status of 4-5 hours ago so I don't lose so much

While watching netflix, I randomly get error code F7361-1253 which prevents the video from playing. Can happen at any random time while watching. I have had firefox for years and have only got this issue in the past few months. It does not happen on other browsers like chrome.

I have tried disabling all extensions and troubleshoot mode, doesn't fix it. I didn't change any firefox settings since this started happening. DRM is enabled, widevine is the latest version, so is firefox, fully updated. I am using Windows 11 Home, 10.0.22631 Build 22631

These are the warnings I got in the console as soon as the netflix error pops up:

Cannot play media. No decoders for requested formats: audio/mp4; codecs="mp4a.40.42" 81036307

Media resource blob:https://www.netflix.com/6bc68eac-89ce-4b21-afcd-f78b0a3908ce could not be decoded. 81036307

This error message will be blank when privacy.resistFingerprinting = true. If it is really necessary, please add it to the whitelist in MediaError::GetMessage: ipc::IPCResult __cdecl mozilla::gmp::ChromiumCDMParent::RecvDecodeFailed(const uint32_t &): ChromiumCDMParent::RecvDecodeFailed with status kDecodeError (5) cadmium-playercore-6.0055.308.911.js:1:568518 WEBGL_debug_renderer_info is deprecated in Firefox and will be removed. Please use RENDERER. cadmium-playercore-6.0055.308.911.js:1:372306

Media resource blob:https://www.netflix.com/6bc68eac-89ce-4b21-afcd-f78b0a3908ce could not be decoded, error: Error Code: NS_ERROR_DOM_MEDIA_FATAL_ERR (0x806e0005) Details: ipc::IPCResult __cdecl mozilla::gmp::ChromiumCDMParent::RecvDecodeFailed(const uint32_t &): ChromiumCDMParent::RecvDecodeFailed with status kDecodeError (5)

I have ffmpeg on my system and haven't touched it in a while.

After the most recent upgrades (both MacOS to 26.4 beta and Firefox 147.0.4), Firefox is giving me this message: Hmm. We’re having trouble finding that site. Any suggestions?