Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Lolu chungechunge lwabekwa kunqolobane. Uyacelwa ubuze umbuzo omusha uma udinga usizo.

I deleted some apps in Firefox 4 b2, opened 3.6, closed 3.6 and opened FF 4 again. But now it's presenting a series of very severe problems.

  • 4 uphendule
  • 0 zinale nkinga
  • 10 views
  • Igcine ukuphendulwa ngu AnonymousUser

AnonymousUser
AnonymousUser
more options

After doing what I described in the thread title, Firefox 4 presented the following issues: 1- Tabs would not close. 2- The "forward" and "back" button would not be lit or clickable, as if I didn't visit any websites. Although pages did load, I could not go back and forth between them via these buttons. 3- the "feedback" button in the right-hand side of the screen was completely gone. Trying to download the respective feedback app that Mozilla provides didn't work, it wouldn't download. 4- the App Management screen would not open. 5- I did not save any of the pages from the previous session. They did appear in Firefox 3.6, wich appears to be functioning normally. The apps I had removed in FF4 were also removed in 3.6. So basically my FF 4 got completely messed up. Reinstalling it did nothing. Cleaning the registry with Registry Mechanic was to no avail either. I had to uninstall FF4 since it was unusable.

This happened

Every time Firefox opened

== When I deleted some apps in FF4, opened 3.6, then opened 4 again

After doing what I described in the thread title, Firefox 4 presented the following issues: 1- Tabs would not close. 2- The "forward" and "back" button would not be lit or clickable, as if I didn't visit any websites. Although pages did load, I could not go back and forth between them via these buttons. 3- the "feedback" button in the right-hand side of the screen was completely gone. Trying to download the respective feedback app that Mozilla provides didn't work, it wouldn't download. 4- the App Management screen would not open. 5- I did not save any of the pages from the previous session. They did appear in Firefox 3.6, wich appears to be functioning normally. The apps I had removed in FF4 were also removed in 3.6. So basically my FF 4 got completely messed up. Reinstalling it did nothing. Cleaning the registry with Registry Mechanic was to no avail either. I had to uninstall FF4 since it was unusable. == This happened == Every time Firefox opened == When I deleted some apps in FF4, opened 3.6, then opened 4 again

All Replies (4)

AnonymousUser
AnonymousUser Umnikazi wombuzo
more options

Hmm, interestingly my Firefox version was automatically identified as of the Megaupload toolbar wich I deleted long ago. No wonder Youtube doesn't recognize me as having Firefox 3+ even though I use it. Some corrupted registry of that toolbar might be what is causing that.

Additionally I have long removed (or don't remember ever using) most of the plugins that were listed.

AnonymousUser
AnonymousUser Umnikazi wombuzo
more options

a Mozilla page taught me how to fix the Megaupload problem, and Youtube now properly recognizes me. It wasn't a corrupted registry at all. One less problem down.

the-edmeister
the-edmeister
  • Moderator
more options

Your UserAgent string in Firefox is messed up by another program that you installed. http://en.wikipedia.org/wiki/User_Agent

type about:config in the URL bar and hit Enter If you see the warning, you can confirm that you want to access that page. Filter = general.useragent. Right-click the preferences that are bold, one line at a time, and select Reset, Then restart Firefox

AnonymousUser
AnonymousUser Umnikazi wombuzo
more options

Yes edmeister, as I have added in the replies, I have fixed this issue already. But thanks for trying to help about that one.

I scarcely believe that the User Agent string would cause all those problems in Firefox 4 though, it must be something else. Any ideas?