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Hi All,

I had several tab groups. I open and save and close them every day. but since yesterdayI cant find them at all. If I create a new tab group it appears but those old tab groups not! I've tested troubleshooting mode but noting.  

Firefox 154.0 (aarch64), macOS 26.6.2.

Firefox is up to date, Windows 11.

I frequently watch BBC videos but approx one week ago, they stopped playing. I have your VPN which is usually off as it give me no advantage, (this appeared following the last update), but I've tried switching on and changing to UK location. No change.

Can you give me some suggestions please?

I have CentOS Stream release 8 on my laptop and desktop, with firefox-115.11.0-1.el8.x86_64

If I connect to some sites, such as signin.costco.com, www.tesla.com/modely, www.airindia.com, www.meijer.com, I get errors such as You don't have permission to access "http://www.tesla.com/modely" on this server. Reference #18.71951eb8.1774502305.1a7c7680 https://errors.edgesuite.net/18.71951eb8.1774502305.1a7c7680 You don't have permission to access "http://www.airindia.com/" on this server. Reference #18.c50e2017.1774501671.2dadbdb4 https://errors.edgesuite.net/18.c50e2017.1774501671.2dadbdb4

The error appears invariant of my IP address (different IPv4 addresses after rebooting my router, or an IPv6 address via a proxy). I have Firefox 60.7.2esr and 78.5.0esr on an older machine. Those sometimes work to some of these sites, but don't support all the site functionality, e.g. I can't actually login to Costco. www.tesla.com/modely works in 78.5.0esr. The Firefox on my Android tablet works for tesla; I haven't checked all the other sites. In conversation with my ISP (Starlink) customer service AI, I have tried deleting cookies and disabling plugins (only H264 and Widevine) with no effect. It suggests there is a problem with Akamai fingerprinting the browser.

I get edgesuite errors using Lynx or elinkx or curl also

I have a new mac air and I had to set up a new Firefox/Mozzila account. Since then, I keep getting a Google sign in request. I have a Google email for websites that I don't really use, so am effectively a Google customer, but I prefer to not have this pop up every time I go to a website that has a sign in. How to I get rid of these pop-ups? Thank you, Fi

Hello,

My little brother signed me out of my mozilla account while trying to login to his school account using my computer yesterday. Now, even after signing his account out AND removing his account entirely from my firefox, I'm unable to login using my credentials on the "original profile" which is what I've always used. This is the message I get when trying to login:

This profile was previously synced to a different account To keep your data organized and secure, each Firefox profile can only be synced to one account. To sign in using (email)@gmail.com, create a new profile.

He wasn't even able to fully login with his account, and even after completely removing his account from my firefox (as far as I know) I'm not able to sign into the original profile at *all*, even though that's what I've always used. Does anyone have a solution for this?

firefox nightly got update with new look

and there is no "Legacy" option no options for accent color,rounding scale, etc.

i hate it please help me or help me with downgrade

Good afternoon

I have been struggling to find some messages specific to specific dates and spend an awful amount of time tryomh yo access the correct one.

The solution proposed is a bit unclear to me, as it refers to "future folders". I need to unthread all my messages. Is this possible?

Thanks

PS The only version number i could find was for Firefox. There does not seem to be one for Thunderbird.

(AI written summary of troubleshooting steps taken before making this support thread)

Firefox version: - 152.0.1 Release - 153.0 Nightly

OS: - Windows 11 build 26200

GPU: - NVIDIA GeForce RTX 4070 SUPER

Codec package: - Microsoft HEVC Video Extensions installed from Microsoft Store

Problem

Firefox does not expose HEVC playback support, causing Twitch to disable 1440p streams encoded with HEVC.

The same machine can play the same HEVC Twitch streams in Chrome immediately after installing HEVC Video Extensions.

Expected result

Firefox should report HEVC playback support and allow playback of HEVC streams, as Chrome does on the same system.

Actual result

Firefox reports HEVC as unsupported.

about:support:

codecSupportInfo: H264 SWDEC HWDEC VP9 SWDEC HWDEC VP8 SWDEC HWDEC AV1 SWDEC HWDEC HEVC NONE

Troubleshooting already performed

- Installed Microsoft HEVC Video Extensions - Rebooted Windows - Updated NVIDIA drivers - Verified hardware acceleration is enabled - Tested with a brand new Firefox profile - Tested with Firefox Nightly - Confirmed Chrome can play the same HEVC streams

Additional observations

Chrome: - Twitch 1440p becomes available immediately after installing HEVC Video Extensions - Twitch Stats for Nerds reports:

 hev1.1.6.L150.90.0.0.0.0.0

Firefox: - Twitch reports that the browser does not support the required resolution - 1440p remains greyed out - about:support continues to report HEVC NONE

Reproducible tests

Firefox console:

MediaSource.isTypeSupported('video/mp4; codecs="hev1.1.6.L150.90"')

Result: false

MediaSource.isTypeSupported('video/mp4; codecs="hvc1.1.6.L150.90"')

Result: false

navigator.mediaCapabilities.decodingInfo({

 type: "media-source",
 video: {
   contentType: 'video/mp4; codecs="hev1.1.6.L150.90"',
   width: 2560,
   height: 1440,
   bitrate: 8000000,
   framerate: 60
 }

})

Result: {

 supported: false,
 smooth: false,
 powerEfficient: false

}

For comparison:

MediaSource.isTypeSupported('video/mp4; codecs="av01.0.08M.08"')

Result: true

navigator.mediaCapabilities.decodingInfo({

 type: "file",
 video: {
   contentType: 'video/mp4; codecs="av01.0.08M.08"',
   width: 2560,
   height: 1440,
   bitrate: 8000000,
   framerate: 60
 }

})

Result: {

 supported: true,
 smooth: true,
 powerEfficient: true

}

Additional note

Setting:

dom.media.webcodecs.h265.enabled = true

causes HTML5 codec test (https://html5test.co/) to report H.265 support, but does not change:

- about:support - MediaSource.isTypeSupported() - MediaCapabilities.decodingInfo() - Twitch HEVC playback availability

Question

Is this a known issue with HEVC Media Source Extensions support on Windows 11 build 26200, or is there another requirement for Firefox to expose HEVC playback capability through MediaSource and MediaCapabilities when the Windows HEVC codec is installed and functioning in Chromium-based browsers?

Firefox does not delete history by using any of the recommended procedures. Clear recent does not work either. The only way I can delete history in by going to manage history and manually deleting.

ich kann Firefox nich in deutsch wiedergeben. Bei der Sprachauswahl geht immer alles auf Englich zurück. Das Problem besteht seit der Ubuntu-Version 18.04.6.was kann ich tun?

Every time I start Firefox lately, it keeps prompting me: "You must log in to this network before you can access the Internet." I have no idea what this means and have no problem accessing the Internet in any case. What suddenly started causing this !#@%$ message and how do I turn it off?

Today I noticed there was not a new tab to click on at all times. There always has been. Now I have to go to File and open a New Tab. What changed? is there a setting to fix this? If so I can't find it.