I can't find a bug on this issue (I thought there was one...) so I am filing a new bug. Please mark as a duplicate if it is. I'm not sure if this is a Preference issue or a Networking: Cache issue. If I don't have browser.cache.directory preference set in my user preferences, when I open the Advanced | Cache preference panel, I see a garbage string in the edit field rather than the location of a local file. An obvious thing to do is select all and delete it garbage text but that leads to problems (see bug #45656). Expectation: When I open the advanced | cache preference panel, I shouldn't get a garbage string in the edit field. Instead I should see a valid path or a blank edit field.

*** This bug has been marked as a duplicate of 45394 ***

Verified dupe.