Firefox Community Forum

I'm using Firefox 141.0 on OpenSuse Tumbleweed with KDE and Wayland. I'm using Firefox with two profiles: work and personal - which is (usually) awesome, until suddenly it's not.

Then, one or both profiles seem to become corrupted, and closing firefox, opening it, choosing either profile just hangs forever. My old tabs show up, but clicking on any tab, for any site, just hangs forever, and no page is ever loaded. Sometimes restarting helps, but sometimes not. Sometimes restarting 2 or 3 times and then suddenly it will work. But normally, I have to just delete all my profiles, and re-create them. Fortunately everything is synced with Firefox sync. Then everything will work wonderfully for a bit - although I have to re-login to everything.  :-(

Any ideas? This is a huge pain and productivity killer. I really love firefox, but this sucks.

Hello, I simply need to update my email, however find no option to update it. Desktop Raspberry Pi 5 desktop OS Firefox Browser 141.0 (aarch64), Mozilla Firefox for Raspberry Pi OS, raspberrypios - 1.0 Here's what I see: attachment.

Every time I change my password or I try to change my password I get notifications double notifications actually one with an eight digit number one with the six digit number it's going to the same account but it's also going to another account in another town how do I stop this

Desktop Firefox 142.0.1 (aarch64) iPhone 11, iOS 18.5, Firefox 144.1 (62735)

I just reinstalled the desktop which needs the mobile phone's bookmarks. If I wipe the phone bookmarks, I lose everything. Backup, how on the phone? Sync, how? The Firefox Bookmarks Sync isn't an exact science and a misstep could be catastrophic!

Here's what I'm looking at on the desktop and the phone, attached. 1. Desktop Firefox Bookmarks Sync window show a 3 horizontal lines (hamburger icon) for iOS Firefox settings. 2. Phone Firefox has 3 horizontal dots (meatballs icon) for iOS Firefox 3. Phone Firefox has my Firefox account logged in and a Settings option, but which one (I choose Settings 4. Phone Firefox Settings shows my ACCOUNT and a Sync Now option, but which one (I don't want the phone to Sync and pull no data from the desktop and wipe the phone Bookmarks (no backups)).

Hello,

I just installed a new version of Linux Mint (Zara) and all is right with Firefox, except the screenshot who doesn't work. The buttons "Capture the visible area" and "Capture the entire page" don't work. The additional tool in the toolbar doesn't work. What can i do, please? Thanks for your answer. Pierre

For some reason text rendered in canvases (used by Minecraft hostings to display console) is distorted. I'm not getting this behavior in other browsers (including Zen – Firefox fork). The issue persists in both stable and nightly versions, with and without hardware acceleration, in safe mode too. Any clues?

Tried to update Firefox. Got the message: your updates are being managed by your organization. I'm a home user. No organization. What is the problem? Thank you in advance.

I've been using Firefox on Linux since it was Nautilus. Currently running EasyOS Linux Daedalus and Excalibur on different Lenovo ThinkCentre Tiny Core i3-8100t boxes and different drives: A good Samsung SSD and two good flashdrives. 32G new RAM installed on each box. I've been using these boxes for over a year. For the last month or so, ever since updating to v. 146 my tabs have been crashing like crazy! I don't normally have more than 10 tabs open at once. But now, as soon as I open a 5th tab it crashes.

I'm running Top to watch CPU and RAM usage. I see nothing unusual. I've rebooted. Disabled all add-ons and run in Troubleshoot mode. Tabs still crash. My only add-ons are uBlock Origin, Temporary Containers and Dark Mode. It happens whether I have hardware acceleration turned on or off. I don't know what else to try. Here are my most recent crash reports. I hope you can figure out the problem. Thank you so much!

Submitted Crash Reports Report ID Date Submitted bp-570147ea-4ab1-4543-828a-d5b7d0260202 2/2/26, 12:04 PM View bp-6422cca3-a458-4b68-9d70-e4acc0260202 2/2/26, 12:00 PM View bp-6be58295-46a1-411d-a241-3f85b0260202 2/2/26, 2:52 AM View bp-afa98aeb-f15f-418b-abe5-06da80260202 2/1/26, 10:03 PM View bp-9c7632d5-db44-47e3-babf-a2bd70260202 2/1/26, 8:28 PM View bp-95d245df-f31d-4512-80bd-f0d180260202 2/1/26, 8:18 PM View bp-85752e77-2bb1-4f13-a2b5-68fdb0260202 2/1/26, 7:24 PM View bp-ae5d263d-608b-485e-867e-2aa190260202 2/1/26, 7:21 PM View bp-9efef3a5-b1ef-4279-b055-fa4760260202 2/1/26, 7:00 PM View bp-5b05d78e-26d2-4896-bbba-bea6a0260202 2/1/26, 6:58 PM View bp-acbd8424-5545-4e40-afbb-93ca90260201 2/1/26, 12:33 PM View bp-1415051a-9824-44d7-8f87-8fd270260124 1/24/26, 8:47 AM View bp-9c50b2a5-27a7-45f6-a65c-e45070260124 1/24/26, 8:47 AM View bp-28e5e55f-952f-45a9-9c99-44e300260124 1/23/26, 11:37 PM View bp-3b509a00-0a8f-4a67-94ec-fad500260124 1/23/26, 11:37 PM View bp-65b6d54d-cbf7-4045-b189-019fb0260124 1/23/26, 11:23 PM View bp-a5e110b3-6d7d-4aa4-b8a7-439f10260124 1/23/26, 9:32 PM View bp-d74bf5ce-fdcd-41e4-b2be-6ed990260124 1/23/26, 9:12 PM View bp-cebf5062-d3aa-4653-9d64-2ad0a0260124 1/23/26, 6:57 PM View bp-1bcd2f2e-2136-412b-8919-ed96c0260123 1/23/26, 5:54 PM View bp-50d66365-399c-464a-b6f4-8a3230260123 1/23/26, 5:32 PM View bp-95b5ab2b-35d4-4867-8f33-ba1b10260123 1/23/26, 5:26 PM View bp-b7c48b83-02cd-435f-b466-dab650260123 1/23/26, 5:26 PM View bp-1eccdf1e-184f-4cd8-8e1f-1d6cb0260123 1/23/26, 3:33 PM View bp-22b3fe80-9420-403b-84a4-4840c0260123 1/23/26, 12:26 PM View bp-aa6baadc-fa01-4c42-90d5-5d4120260202 2/2/26, 12:07 PM View bp-9cf8b3be-8be4-4fd2-a812-444540260202 2/2/26, 12:07 PM View bp-22f8081d-7052-4962-a699-66b600260202 2/2/26, 12:07 PM View

So I had logged into this Firefox account, but while I was, I forgot my password. I needed to enter the correct code from the email, but I lost the recovery key; I needed to enter in the 2FA code from my phone, then I could now change the password. When I logged in, boom, bookmarks gone. Passwords gone, and browsing history gone. I was waiting for it all to sync, but it had probably synced the deletion of everything possibly. I have no idea what happened, but I do not believe my account was compromised, because I did not get any emails about any new logins. If it is encrypted, how can I decrypt it so I can get my stuff back? Thanks.

I have recently installed the containers extension and have been having a bit of trouble with one site (the others are fine), which seems to originate from the manner in which the site is structured. As it references new pages, they are often in a different URL. For example, you start in login.site.com, which then tries to load dashboard.site.com, but it fails authentication on dashboard.site.com because it opens in a different container. Which then tries to open the login.site.com page again, which displays the login page, but showing it tying to complete the original authentication. I have tried to add each step along the way, but without success. Is there a way to overcome this?

`StartupWMClass=firefox-aurora` in `/usr/share/applications/firefox-devedition.desktop`, with actually `firefox-dev` for opened windows.

Version: Ubuntu 25.04, GNOME 48, firefox-devedition 143.0b2.

New installation of Debian 13, Firefox setup with sync on successful. However, I wanted to add hone button and a few other mods to the toolbar but when I started customize the toolbar from menu pic the customization page would not work, it appeared and seemed OK but when I dragged and dropped anything it would not work. I could pickup items but they would not place in toolbar and just snapped back to the pallet. I tried several different ways to enter the customization area but it was always non-functional.

Hi, my Machine updated from 140.0.4 to 141.0 since then I cannot start up Firefox anymore. On startup after a short pause the Crash Reporter shows up - interestingly the Crash Reporter may enter a endless loop and opens up multiple times. While that the CPU load is at 100%. I tried

• `firefox --safe-mode`
• `firefox --ProfileManager`

as well, for those I get the same behavior. I tried downgrading to 140.0.4 - after that a profile dialog shows up which tells me that a new profile needs to be created due to a downgrade. After that Firefox comes up fine with the new vanilla profile. IF Firefox updates to 141.0 (in background) the next startup with the vanilla profile doesn't work gain. Which brings me back to the initial problem.

Workaround for now:

• download 140.0.4
• create a fresh profile
• immediately disable auto update
• live with the empty profile

My environment:

• Linux Debian 12 on x86_64
• KDE Plasma
• nvidia drivers installed
• I am using Firefox from `https://download-installer.cdn.mozilla.net/pub/firefox/releases`

I am trying to sync Firefox data to new computer. The Mozilla account only allows me to sync mobile devices. Online instructions do no match my version of Firefox 131.0.2, Ubuntu 24.04.

I am running Firefox 126.0-1 on an Arch Linux system. Most websites are failing to connect for security reasons.

Some sites, including google.com and nytimes.com, fail with an "SEC_ERROR_UNKNOWN_ISSUER" error, and their certificates confirm that they are respectively issued by Google Trust Services LLC and DigiCert Inc.

The website archlinux.org errors with "MOZILLA_PKIX_ERROR_MITM_DETECTED", stating that "Software is Preventing Firefox From Safely Connecting to This Site", citing in particular ISRG Root X1 as the problem. The certificate confirms that it is issued by Let's Encrypt.

The website duckduckgo.com simply errors with "SEC_ERROR_PATH_LEN_CONSTRAINT_INVALID" and states "Secure Connection Failed"

I have confirmed in preferences that my proxy settings are set to "No proxy" and the problem persists across troubleshooting mode and making a new profile. I have also tried removing the cert9.db file in a given profile folder.

Hi,

I was using FF on Ubuntu 22.04.4 LTS. Had version FF 120.x and playing video in Netflix worked fine. Then I updated to FF 124.x and playing video stopped with error F7355-1203.

I've checked the DRM setting and it is enabled, I checked addons and I have OpenH264 and Widevine installed, both set to always active.

I've checked installed codecs and I do have libavcodec58 installed. No update for that available via apt. I also have ffmpeg installed, no problem with that either. I can play Netflix videos in Chrome, but not in Firefox now. Something happened to Firefox when I updated from 120.x to 124.x. Today I updated to 125.x, same problem, Netflix video won't play.

I've unchecked the DRM setting and re-checked it, and that does reinstalled Widevine but does not fix the problem.

Any ideas what could be the cause?

When I try to run firefox 141.0 (Linux x64) I get:

libxul.so: undefined symbol: gdk_wayland_device_get_wl_seat Couldn't load XPCOM.

Is there a way to fix this?

I'm using Slackware 14.2.

I am trying to configure Firefox on macOS to not prompt the user to make it the default browser.

I am using the following script to create the profile and set the user preferences after installing Firefox by copying `Firefox.app` from the downloaded DMG: ```

1. !/bin/sh

open -a Firefox.app --args -CreateProfile default sleep 1

write_userpref() { USER=$(whoami) PROFILE=$(ls -1 "/Users/${USER}/Library/Application Support/Firefox/Profiles/" | grep -E "\.default$") cat << EOF > "/Users/${USER}/Library/Application Support/Firefox/Profiles/${PROFILE}/user.js" // mandatory comment? user_pref("app.update.auto", false); user_pref("app.update.disable_button.showUpdateHistory", false); user_pref("app.update.enabled", false); user_pref("breakpad.reportURL", ""); user_pref("browser.newtabpage.activity-stream.feeds.topsites", false); user_pref("browser.newtabpage.activity-stream.feeds.section.topstories", false); user_pref("browser.tabs.crashReporting.sendReport", false); user_pref("browser.discovery.enabled", false); user_pref("browser.defaultbrowser.notificationbar", false); user_pref("browser.shell.checkDefaultBrowser", false); user_pref("browser.shell.didSkipDefaultBrowserCheckOnFirstRun", false); user_pref("browser.shell.skipDefaultBrowserCheckOnFirstRun", true); user_pref("browser.newtabpage.enabled", false); user_pref("experiments.enabled", false); user_pref("extensions.pocket.enabled", false); user_pref("toolkit.telemetry.enabled", false); user_pref("update_notifications.enabled", false); EOF }

write_userpref

open -a Firefox.app --args -new-tab -P default "about:blank" sleep 3 osascript -e 'quit app "Firefox"' sleep 2

open -a Firefox.app --args -P default about:blank ```

Here's the behaviour I'm seeing:

1. Firefox starts to an `about:blank` tab, however there is a second "Firefox Privacy Notice" tab
2. AppleScript quits Firefox
3. Firefox starts to an `about:blank` tab, however it is now prompting me to make it the default browser

I do not want Firefox to prompt the user to become the default browser.

My ideal scenario is that Firefox starts without the "Firefox Privacy Notice" tab and without prompting me to make it the default browser. From the observed behaviour, this doesn't seem possible.

Can anyone tell me how I can accomplish this without user interaction or MDM?