62db5789_Known_Issues__Affected_Users
[Current Issue] Browser: Units over 500MB cannot be backed-up when using IE8 or Firefox 3.6.x [Status] This issue is currently with Moodle HQ. [Affected Users] 
Moodle adminstrators backing up units For large units over 500MB, avoid using Internet Explore 8 or Firefox 3.6.x Use a different browser such as Chrome.
Known Issues
Affected Users