Firefox Community Forum

Hi, A few weeks ago, I wanted to sync my open Firefox tabs between my old laptop and my new one. I signed in to my Mozilla account on both computers, and the sync process worked just fine. For weeks, my synced tabs appeared in my Firefox sidebar on my new laptop, and all was good. However, the other day, I had to restart my computer a few times, and when I open Firefox again, my synced tabs were gone. On my Mozilla account page, it still says that I am signed in to my old laptop. How can I see my synced tabs again? Thank you very much for your help!

I'm getting the following with some websites since the most recent firefox update. It happens with outlook mail, facebook and my bank (and others) all of which I would expect to be up to date.. Secure Connection Failed

An error occurred during a connection to outlook.live.com. PR_END_OF_FILE_ERROR

Error code: PR_END_OF_FILE_ERROR

   The page you are trying to view cannot be shown because the authenticity of the received data could not be verified.
   Please contact the website owners to inform them of this problem.

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Firefox won't load videos that other browsers will. Typically, when I load a page, there's a big blank spot where the embedded video should be -- where the video shows up on Chrome or Safari. I've tried clear the cashes and reloading Firefox, but the problem persists. For many reasons, I'd prefer to use Firefox, but if I can't fix this, I'll stop using it at all. Can anybody suggest ways to fix this?

Hi guys. I'm running on Windows 10 Enterprise 22H2, build 19045.5011. Since the latest Firefox update (current version 132.0.2, 64-bit) I'm unable to use Plotly interactive plots - they just appear as blank boxes. I've tried other browsers and everything works there. I can also see that there are several threads on GitHub regarding this error - unfortunately, none of the solutions I've seen apply to my case.

Any ideas how to fix this? I really like FF, but I am forced to switch for now. Wouldn't like this switch to be permanent.

I can open Firefox and it works fine on my (admin) user account, as it has for years.

Starting today, when my wife is logged in on her account/user on the Mac, when trying to open Firefox there is a prompt "Firefox is trying to install a new helper tool" and requests the admin name and password. I authorized yes to install the helper tool, and then the Firefox icon bounces on the dock indefinitely and Firefox is "not responding" and never opens. If I force quit and try again, I get the same prompt to install the helper tool and the cycle begins again.

I think this started after I updated a BitWarden extension on Firefox on my wife's account, but not sure if that is what provoked the problem. The same Bitwarden extension exists on Firefox on the admin account, and that Firefox works fine.

What I have tried so far: Shut down all BitWarden apps. Refreshed Firefox on the admin account - which deletes the BitWarden extension. Moved Firefox to the trash. Restart the computer. Re-install Firefox from the admin account (Firefox again works just fine when admin is the user). But Firefox still does not work when another user (my wife) is on her account - same issue with asking to install a helper tool and Firefox never opens.

Hardware: MacBook Air M2, Seqouia 15.1

Any help is much appreciated.

Hey all,

After a fresh windows install I ran in to an issue where Firefox has issues playing back videos. It is most noticeable on Reddit, but other video sites that are not Youtube (for some reason Youtube videos, even when embedded in Reddit) have the same issue.

What happens is: a video shows the first frame. I press play and it plays at an extremely low rate 1 frame every few seconds, I can't really tell whether it goes from frame 1 to 2, but it definitely does not go from 1 to 1+(time past * frame rate). Another symptom that seems to be reddit embedded video specific is that after some time it says "video not available."

Videos do play for a very short while after rebooting, and clearing cookies also seems to help, however after some time even clearing cookies has the video stopping again.

I ran the profiler for media on a completely fresh profile with no addins. I found a video, started the profiler and pressed play. I let it run for 2 frame changes and after that I stopped the profiler. I'm not able to really interpret what is going on, but I hope that someone can.

https://share.firefox.dev/4eKL4PT

I've shared device/troubleshooting info.

Windows and Firefox are installed on a 1TB Samsung Evo 970, which I think may be the only relevant bit of info that's not in there.

If there is any other info that I can provide I am happy to do so.

I can't upload videos to YouTube via Firefox. Uploading progress stays on 0%. Using the Edge browser videos upload normally. It has always worked with Firefox previously.

Hallo Wenn ich in Firefox eine Seite Öffne kommt sofort eine Betrugsversuchsmeldung von meinem Bitdefender Internet Security Programm. Inzwischen fast 500 mal seit 14 Tagen. Es handelt sich immer um die selbe Seite.

Habe die Seite am Router Und im PC  gesperrt. Hat nicht geholfen. Außer 2 Abstürze in den vergangenen Tagen kann ich jedoch keine Fehler oder sonstiges feststellen. Schon seit längerer Zeit kann ich mit Fierefox nicht mehr auf mein Bitdefender Central einwählen.

Hier die Copy der Meldung.

Online-Gefahrenabwehr

Wir haben diese Betrugsseite zu Ihrem Schutz blockiert: https://bcnexum.com/ Betreiber von Betrugsseiten setzen auf Täuschung, um sich illegal zu bereichern. So kann ein gefälschter Online-Shop das Opfer zum Beispiel dazu bewegen, Zahlungen im Voraus zu leisten, ohne dass die Ware dann geliefert wird.

Wie kriege ich die Ratte wieder los.

Mit feundlichen Grüßen Peter Birk

Hi,

I have the following problem: when I open a downloaded firefox pdf file, a banner partly covers the text. I do not know how to remove the banner. See attached printscreen.

I hope you can help me!

Best regards, Els Willems

I noticed that after Norton updated their Anti Virus to 24.10.9535, that I sometimes get a message that says "Connection verified by a certificate issuer that is not recognized by Mozilla", when I click on the Lock Icon. I never saw this before the Norton Graphics User Interface was updated to the most current one. I tried completely uninstalling and reinstalling Firefox, but No change. With some websites, for instance https://support.mozilla.org, I see the normal "Connection secure >", right underneath the "Site information for support.mozilla.org". But with something like: https://www.att.com, I see the error that I never saw before. I sent a message to Norton with this information too, but I don't know if they will respond or not. I know that I'm still getting the "Connection secure >", above the error, but it bothers me to see that error underneath. I am on Windows 10, using Firefox 132.0.2, at the moment. Also, Windows 10 is version 22H2 (OS Build 19045.5131), so I have all the latest patches. On my Windows 11 PC, that Norton is still using GUI version 22.24.8.36, I Never see this error. (Windows 11 is on the newest Windows version, with all patches installed; and Firefox is version 132.0.2)