X
Tap here to go to the mobile version of the site.
Your Firefox is out of date and may contain a security risk! Upgrade Firefox

Support Forum

files stored in application data cache

Posted

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?

Chosen solution

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.

Read this answer in context 0

Additional System Details

This happened

A few times a week

This started when...

In the last few months

Installed Plug-ins

  • Adobe PDF Plug-In For Firefox and Netscape 10.1.2
  • Shockwave Flash 11.1 r102
  • CANON iMAGE GATEWAY Album Plugin Utility Module

Application

  • User Agent: Mozilla/5.0 (Windows NT 5.1; rv:8.0.1) Gecko/20100101 Firefox/8.0.1

More Information

A Windows XP search for all files created between weekly runs of my virus scan application AVG.

John99
  • Top 25 Contributor
  • Moderator
622 solutions 8040 answers

Chosen Solution

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.

cor-el
  • Top 10 Contributor
  • Moderator
10762 solutions 96861 answers

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: