Firefox Support Forum

Hello all. Since the update to Version 113.0 I have been getting an error in my Event Viewer which is Event 2 Firefox Default Browser Agent . I am now on Version 113.0.1 and still get this error. Firefox is my default browser. Below is an image of what I see in my Event Viewer and also the full view of the event itself. I seem to not be having any problems with the browser but I was wondering if anyone could shed some light on why this is happening or forward to the Devs.

Respectfully, Don

Log Name: Application Source: Firefox Default Browser Agent Date: 5/14/2023 4:19:42 PM Event ID: 2 Task Category: None Level: Error Keywords: Classic User: N/A Computer: DESKTOP- Description: The system cannot find the file specified. Event Xml: <Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">

 <System>
   <Provider Name="Firefox Default Browser Agent" />
   <EventID Qualifiers="32775">2</EventID>
   <Version>0</Version>
   <Level>2</Level>
   <Task>0</Task>
   <Opcode>0</Opcode>
   <Keywords>0x80000000000000</Keywords>
   <TimeCreated SystemTime="2023-05-14T20:19:42.8333225Z" />
   <EventRecordID>9023</EventRecordID>
   <Correlation />
   <Execution ProcessID="0" ThreadID="0" />
   <Channel>Application</Channel>
   <Computer>DESKTOP-         </Computer>
   <Security />
 </System>
 <EventData>
   <Data>0x80070002 in RegistryDeleteValue:320</Data>
 </EventData>

</Event>

Possibly there was an auto update of MOZILLA FIREFOX on our DELL LAPTOP (Windows 11). Now, we cannot get a Mozilla window to open - due to error message:

XUL Runner Error: Platform version '118.0.1' is not compatible with minVersion >= 118.0 maxVersion <=118.0

Can someone please help us get back to a previous version of Mozilla Fire. Perhaps it is a Windows error. I have no way of knowing. Please help me. My email is: [removed email from public] Thank you.

Not sure when it started but nearly every attempt to play Youtube videos results in the video freezing after about 1/2 second while audio continues, then the video jumps forward randomly before freezing again. Have reloaded, restarted, cleared history, cookies, etc, and nothing helps. Mean time Chrome plays the videos flawlessly. This is a recent problem with FF and needs fixing badly as it will just not go away.

I am running Firefox (Flatpak) on Debian 12 and I use a Nelko thermal label printer. I had installed nelko-printer-driver previously and had no issues printing on Firefox but, due to an issue with Debian, I had to reinstall Debian 12. Now, when I try to print a document then Firefox immediately crashes. I have tried:

• Uninstalling the Flatpak and deleting app data
• Help > More Troubleshooting... > Clear Saved Print Settings
• about:config > Reset modified printer settings
• Uninstalled/reinstalled nelko-printer-driver
• Restarted

When I'm trying to go to a specific website, it doesn't connect with an error code "SEC_ERROR_UNKNOWN_ISSUER". I was able to press a button labeled "Accept the Risk and Continue" before, but the button seems to have disappeared?

So for the last little while, Facebook has been making a complete nuisance of itself on firefox. This isn't a browser problem, because the other tabs I have open work perfectly fine, but FB takes forever to load, and any button I press to interact with it, (like the reload button,) also lags, (but, again, works fine on other tabs,). It doesn't even register links as being clickable for a good minute after loading. The page also seems to reset every time I switch from another tab to it, showing a blank page with a loading symbol. I have tried deleting the entire history, and restarting the browser, and deactivating the adblocker, (the only extension active) and nothing seems to help. Does anybody know why it's doing this, (other than because the company follows the 'if it isn't broke, break it' theory, which we all already knew,) and how to fix it?

I've been using Firefox for many years without a problem and have always liked it, but I've recently starting encountering a problem where Firefox consistently crashes after closing. After I close Firefox, the Windows Task Manager shows it still in memory. After a couple of minutes, the Mozilla Crash Reporter screen pops up informing me that Firefox had a problem and crashed, with an option to restart Firefox or Quit. I tried refreshing Firefox, which was a challenge because of the problem of hanging in memory after closing, but it did not resolve the problem. I also tried uninstalling it, then deleting the Mozilla folders and clearing out any references to Firefox in the Windows registry, and reinstalling it. I haven't installed any extensions yet; but sadly, I continue to encounter the problem. Any ideas about how to resolve the problem?

I should mention that I had bought a new SSD for my computer and migrated everything over from the old SSD to the new one. The problem with Firefox began after the migration. Everything else that was installed there works without a problem. I would be surprised if this is related to the issue considering I've reinstall Firefox.

in the last day firefox has all but stopped working on most websites. i can go to them and they start to load, but then they eventually break halfway through and either end up loading forever or produce an error. if i look at the console i see "Source map error: Error: NetworkError when attempting to fetch resource." this happens on twitter.com and raidbots.com to name two off the top of my head.

i did a complete refresh and even completely uninstalled and reinstalled the browser - it started working for a bit and then broke again. i have no plugins or extensions enabled currently (i have dashlane but this happens with it enabled or disabled). it's making the browser unusable. ive scanned my computer for malware and cant find anything either. i don't have this problem in any other browsers so not sure what else to try.

Hello.

I'm using Firefox on windows 11 home 22H2. After the recent update to 118.0 I've been unable to load yahoo.com.

I tried the following: Disabled addons Disabled firewall Restarted firefox Restarted computer Restarted firefox in troubleshoot mode

I'm out of ideas except for a downgrade maybe.

Does anyone have any suggestions?

Regards, Klaas

On a site with a menu along the top the rightmost item is missing, and only in Firefox, not Chrome or Edge. It happens on various pages with the same menu setup. I cleared cookies & cache, turned off extensions, no luck. See attached image. What could the problem be ?

Everything was working fine on Firefox up until a couple weeks ago when my searches started lagging.

What happens is - if I type a search into the main URL/search bar on the browser, it loads just fine. But if I type a 2nd search into a website search bar, such as on google.com, there is about a 12 second delay between me hitting enter and the page actually starting to load. The page freezes during this time and is unable to be interacted with. This issue does not happen in any other browsers outside of Firefox.

Things I've tried so far: Troubleshoot mode/safe mode, clearing cookies and cache, uninstalling and re-installing Firefox

Nothing has helped... wondering if this was caused by an update?

continue in /questions/1424778 in Thunderbird section.

Having used Thunderbird for some time, I installed it on a new PC, and found that virtually all my emails on a particular account seem to have been deleted, despite the app being set up to retain them. I checked on the webmail (BT) and they have gone. The account is set up as IMAP - as is another account on the same server, which seems OK. BT won't engage with me on this as they "don't support third party apps" I assume that 3 years worth of important client history is gone for ever? Can anyone suggest what I did wrong, or is this a software failure?

Hello everyones,

My firefox on my ubuntu give me to "bug" :

first "The bookmarks and history system will not be functionnal..." second, when i try to sync sign up : "error 500"

What i have try, "rm -rf .mozilla .cache/mozilla" i have download latest version and execute "firefox-bin" i have try to chmod 777 all this folders and under folders...

i'm working on it from three hours and have read many solution on firefox support or others website, no one works...

So can you help me ?

Firefox displays websites with gibberish for headlines. I've monkeyed with the "Fonts" preferences in the Settings to no avail. Perhaps I'm not choosing correctly. They are currently set with Firefox's defaults and the box allowing websites to choose their own fonts is also selected. No matter what I've done, it looks like the attached image. Help!

I am unable to log into facebook after inputting my password and 2FA. disabling all addons does not help. It is stuck on the "This was me" screen in an infinite loop.

I got a notice that Firefox (and Thunderbird) were updated this morning. Took me an HOUR to find out how to make the miniscule font in my inbox larger. So.. suddenly, new problem.

When I click the Firefox icon to launch the browser, and reopen my tabs, It opens for a millisecond, then closes faster than I can try to read if there is an error. When I click it AGAIN, all my tabs are GONE and I have to search for them manually, which is a royal pain.

Why is this happening? How can I stop it from happening? This is annoying as hell.

I ran a loghttps://pastebin.com/jydVHHs0 of playing a youtube video mediaencoder? not sure if encoding issue or something else

The videos take a long time to play. I upgraded my system recently and was removing and reinstalling audio-related utilities with DNF.

This has been asked here before but I've tried EVERYTHING that was offered that time, none worked.

I've used Firefox since the start, and before, I used Netscape in the 90s. I'm ready to move to another browser forever if I can't fix this. Can anyone help please?

Only thing that worked was dumb workaround of changing my Home URL from https://www.google.com (which takes about 60 seconds to do a search) to https://www.google.com/search?q=BipTunia

The second works. (Was the last search I'd done, it worked, so I used it. Works fast if I delete the word it puts in the search field, do my new search and hit Enter)

I'm on Win 10, latest version (117). Fast computer, no viruses. All other programs closed.

Search on main Google URL works fine with same Google account on other browsers, not Firefox.

I HAVE TRIED ALL OF THESE (WITH NO JOY), plus rebooting Firefox every times;

--Cleared all cache, data and cookies. --Reset Firefox --Tried Firefox in Safe Mode --Signed in with different Google account. --Signed out of Google account. --Reinstalled Firefox --Tried with and without Hardware Acceleration on --Changed default Firefox Theme