Firefox Support Forum

I can use firefox just fine (win10 home, v2004, os build 19041.1415)- I only get the XPCOM error when trying to open the Eset protected browsing window (for banking and protection). This has not happened before when using/updating Firefox and only just happened when I updated Firefox today to 96.0.2.

I've been browsing the XPCOM queries and have tried the basic reinstall (deleting program folders prior to installing) with no luck, but so far but wanted some clarity prior to trying other things-

Some of the answers here point out that security software can block the folder access when Firefox attempts updates/installs. I attempted an install with Eset paused, but no change. On another computer, a similar problem - a firefox error message occurs when trying to run the Eset protected browsing window, so attempted the same "program folder delete>reinstall" method, only now when clicking the Eset window, it just gives the loading symbol then nothing happens. Again- Firefox also works fine on that computer as well save for the same protected window usage. Not the same error, but still similar enough to think it's related.

Is a safe mode firefox install the next step forward? Should firefox be uninstalled prior to doing so? (Not just deleting the program folders via file explorer, but an actual uninstall process). Or is this something that should be breached with Eset tech support (beyond just pausing the internet protection and functionality, should it be uninstalled prior to firefox reinstall and than installed again afterwards)?

Please advise and thank you in advance!

Hi Since the latest up date to Fire Fox. I have not been able to sign in on any web pages the requires the a Security Prompt (Captcha) any Ideas what has changed and needs to be altered in settings ?

Mac OS 11.2.3 Tried every tip in the troubleshooting guide. Firefox still does not work. Downloaded and installed version 96 but "Update History" only shows up to 95. Thanks for any help.

Firefox does not work any longer, with this build, on my computer. urls do not load; the browser itself loads sluggishly if at all.

I have cleared history; removed all adblock/ security management extensions; and uninstalled/ reinstalled the browser. Same performance.

Please help!

I'm running v95.02 (64bit) on a Dell G5-5500 with 16GB RAM and an NVIDIA RTX 2070 with 6GB RAM with Windows 11 (v10.0.22000)

On many occasions (several times a day) Firefox simply goes away without warning... sometimes after several minutes on a page. Sometimes in GMail, sometimes Facebook, sometimes other sites... there does not seem to be a particular pattern.

Is there a hidden log somewhere that I can send to you to help resolve this issue?

Thx!

Al

Update to version 96 64-bit just completed. Many websites now experiencing Secure Connection Failed PR_END_OF_FILE_ERROR. Did Help -> More Troubleshooting Information -> Refresh Firefox to go back to all defaults. Open Firefox again, add Menu Bar. Open what used to be home screen tabs, ok at first, but within minutes start experiencing Secure Connection Failed in several websites. Seems to come and go, sometimes a Reload current page restores normal website, sometimes not. Close Firefox, open again, restore previous session tabs, only a matter to time before one or more start getting Secure Connection Failed errors. No extensions, no themes. Browser is now so unreliable as to be unusable. Please assist.

Since I upgraded to v96.0 I have been getting this error message every time I open Firefox. I read another thread that suggested I alter...

    browser.sessionstore.max_resumed_crashes

...to zero (0) in "about:config". However, I'm guessing this change basically turns off this functionality, which I wouldn't want if the browser actually crashed. However, this doesn't seem to work at all, either on the network "Data" folder or the local "Data" folder, so Firefox has become very annoying to use.  :-(

I have two (2) data directories (which, of course, contains my profile) for firefox; one on my local machine and one on the network. I normally use the network data directory and only use the local one if I'm traveling. I haven't used the local "Data" for three (3) months, and it worked fine for two weeks. As a test I activated the local "Data" directory (I renamed "Data" to "Data_network" and "Data_local" to "Data"). I got the same problem so I'm sure this has to do with the latest upgrade to v96.0.

My settings, which have always been set like this, are:

 + I have "Open previous windows and tabs" un-checked.
 + I have "Choose what you see when you open your homepage, new windows, and new tabs." set to "Custom URLs..." and my "Homepage and new windows" is set to my home page URL.

Any thoughts?

Since installing via update, then deleting Firefox and installing it again, in Version 96 I get the following error on all sites I attempt to access through links:

Secure Connection Failed

An error occurred during a connection to gmail.com. 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.

Learn more…

What does this error mean and how can I fix it. It seems to prevent any videos from loading or playing and the sites also from loading if they video links.

Here are the facts of my case, now closed as duplicate.

I just remembered that heretofore, Firefox has automatically disabled Add Ons that were amiss. Rather than action DrMoishe Pippik's bifurcation stopgap myself, can't I do nothing — and wait a week or two — if someone more technologically skillful deduces the astray Add On, and Firefox disables it?

Noticed recently firefox looses windows on startup. Set to restore on bootup, but quite frequently Firefox looses a whole window, each with several panes. eg I'm lazy and will have an ebay window, each pane different, watchlist and others with items I'm looking to buy, saves me ticking all the little boxes. Another window might be nas boxes, each pane being a nas box. Then a general window fo bowsing news etc. Noticed on startup a whole window vanishes with all its panes. Not an accidental click on close window, since get a warning if I do that because of multiple panes.

whenever I open Firefox it closes immediately this happened with opera As well there is no crash report or anything like that it just pops up for a micro second and then disappears if I'm lucky I get to see a window or tab pop up . its not my computer either as my friend has the same one and opera and Firefox work fine perhaps it could be windows 11 but even on my old windows 10 it would do the same thing

Firefox installed in Windows 10 (64). Just recently FF will not open when executed even though Windows Task Manager shows it is a running process. I've rebooted and reinstalled to no avail. It's the latest version. Any suggestions?

Almost every time I visit the typing test website MonkeyType (https://monkeytype.com), and take a typing test, the tab simply freezes and does not update. Soon after this, Firefox stops responding. However, the website works smoothly on Tor browser, which is also based on Firefox. I've tried disabling WebGL, and running the website on a new profile in case corrupt cookies or extensions were the issue, but this still doesn't work. What can I do to solve this issue?

More info: I'm running Windows 10.

I open my browser and close it often during the day. And every time that master password pop up comes up disrupting what I am doing. I often don't notice because I have a mild visual disability and I look down at the keyboard to type longer texts. I can't count how many times I've typed entire paragraphs into that damned box before I notice. This happens ALL the time and I MUST find a way to get rid of this! This is the ONE thing Chrome handles WAY better than FireFox.

How do I make this stop? And if there's no way other than disabling my master password, then FireFox needs to be updated to handle this differently!

Thanks.

This problem started just last night. Other browsers work, my internet works, I have used everything on this support website to try to fix the problem and NOTHING has worked. I have even refreshed and completely reinstalled Firefox and that hasn't worked either. What can I do? I can't even take a screenshot, ask for help, or load back into my Firefox account!

Can anyone tell me why I keep getting an error message when I click to view my Upcoming Bills & Payments, and also when I click the "Contact Us" link... The error message is: "Sorry! We're unable to find the page you were looking for due to a technical problem." I've tried clearing the cookies but this didn't help. When I do my CBA internet banking using Chrome, I don't have the same problem as with Firefox.