cancel
Showing results for 
Search instead for 
Did you mean: 

files stored in application data cache

SOLVED
Highlighted
New Contributor

files stored in application data cache

Recently my weekly virus scans have taken longer and longer. The number of files scanned increased by tens of thousands every week. A carefully crafted search shows that files in the directory C:/Documents and Settings/userxxx/application data/Mozilla/Profiles/....../Cache/ is the probable source of all the now hundreds of thousands of files that my virus scan is encountering. Does anyone know which Mozilla application these files are being created by? Are they important or just temporary 'work' files?

1 ACCEPTED SOLUTION

Accepted Solutions
Support Forum Moderator

Re: files stored in application data cache

The firefox cache may be cleared and should not have any ill effects, although some websites may then take longer to load. If you decide to clear the cache, or part of it see:

You can obtain some info about what is stored in the various firefox caches by entering into the location bar about:cache the results are not very user friendly (unless you get hold of a suitable cache viewer add-on) but it should help you work-out what is accumulating and how big these are.

Having a firefox cache increasing by tens of thousands of files every week sounds rather unusual to say the least, and I may begin to think about trying to check whether malware is the cause.

2 REPLIES
Support Forum Moderator

Re: files stored in application data cache

The firefox cache may be cleared and should not have any ill effects, although some websites may then take longer to load. If you decide to clear the cache, or part of it see:

You can obtain some info about what is stored in the various firefox caches by entering into the location bar about:cache the results are not very user friendly (unless you get hold of a suitable cache viewer add-on) but it should help you work-out what is accumulating and how big these are.

Having a firefox cache increasing by tens of thousands of files every week sounds rather unusual to say the least, and I may begin to think about trying to check whether malware is the cause.

Site Moderator

Re: files stored in application data cache

Please update Firefox to the latest version via "Help > About Firefox" or "Help > Check for Updates"
The Firefox 8.0.1 version that you currently run is no longer supported with security updates.

You can find the latest Firefox release in all languages and for all Operating Systems here: