User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.4) Gecko/20030624 Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.4) Gecko/20030624 Default Mozilla cache directory configuration on Windows is under C:\Documents and Settings\brigaut\Application Data\Mozilla Thus Microsoft is very precise about not using this "Application Data" directory for temporary storage because of roaming profiles synchronisation: http://msdn.microsoft.com/library/default.asp?url=/library/en-us/policy/policy/profiles_directory.asp >>>>>Local Settings Application settings and data that do not roam with the profile. Usually the settings or data in this directory are computer-specific, or they are too large to roam effectively. This directory contains the following subfolders: Application Data, History, Temp, Temporary Internet Files. Reproducible: Always Steps to Reproduce: This configuration errors leads to impossible synchronisation when logging in ou logging out on windows if the profile directory is on a server (too many file to synchronise) Actual Results: N/A Expected Results: Use the "Local Settings" directory instead: C:\Documents and Settings\brigaut\Local Settings\ Proposal for the default cache directory: C:\Documents and Settings\brigaut\Local Settings\Application Data\Mozilla\Cache thus the directory in default configuration should be C:\Documents and Settings\brigaut\Local Settings\Application Data\Mozilla ... because oddly you have to point to an upper directory instead of the exact cache directory containing cache files

Please search before you file a bug, this one is very easy to find. *** This bug has been marked as a duplicate of 74085 ***

V/dupe.