Firefox 5 is apparently incompatible with F-Secure anti-virus; F-Secure repeatedly pops up "Changed Application" messages; How do I restore my previous version of Firefox?

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Last reply by jscher2000 - Support Volunteer

13 years ago

21/6/11 11:08 ಪೂರ್ವಾಹ್ನ

I just installed Firefox 5. Unfortunately, F-Secure's "Application Control" now repeatedly pops up "Changed Application" messages in an endless string. It will not accept my attempts to "Allow" the new version of Firefox. Since Firefox 5 is not compatible with F-Secure, I must return to my previous version of Firefox. I am very disappointed that you have put me to all this trouble. How do I delete Firefox 5 and return to the previous version of Firefox?

Chosen solution

okay new update for firefox 5 was released today

👍 0

Answer 1 · 2011-06-21 11:08:50

belius

22/6/11 07:47 ಪೂರ್ವಾಹ್ನ

I have F-Secure and today updated Firefox from 4.0.1 to 5.0, and then got this same problem with an endless string of messages from F-Secure. For me, the Firefox update was not a good thing. I removed the updated Firefox 5 from my computer (XP), and run Regedit, searched for the key Firefox and removed most items. Then I installed Firefox 5, and no more F-Secure messages are seen. Everything ok.

Answer 2 · 2011-06-21 11:08:50

jscher2000 - Support Volunteer

Top 25 Contributor

22/6/11 07:52 ಪೂರ್ವಾಹ್ನ

I don't know F-Secure, but can you go in and obliterate its memory of Firefox 4 so it thinks Firefox 5 is a new application? Perhaps then it won't get so agitated.

Answer 3 · 2011-06-21 11:08:50

philip_fry

22/6/11 08:34 ಪೂರ್ವಾಹ್ನ

"F-Secure repeatedly pops up Changed Application" So how is this Firefox's fault? Shouldn't you write to F-Secure so they fix that?

Answer 4 · 2011-06-21 11:08:50

checker

23/6/11 01:02 ಪೂರ್ವಾಹ್ನ

i had this problem, too when i updated firefox 3 to 4. but then after a few days it has worked. maybe it was an update from f-secure, don't know. I hope there will be a new update

Answer 5 · 2011-06-21 11:08:50

checker

30/6/11 02:07 ಪೂರ್ವಾಹ್ನ

F-Secure has said update will be released probably on 08.07.2011

Answer 6 · 2011-06-21 11:08:50

the-edmeister

Moderator

30/6/11 05:35 ಪೂರ್ವಾಹ್ನ

^ That is nice of F-Secure to fix their stuff for Firefox 5 (which was released on 06-21) in early August, after Firefox 6 is released and just weeks before Firefox 7 is released.