Torbutton throws exception with Iceweasel 8.0b4 when it has been active on close
When Torbutton has been active (ie. traffic is routed through the Tor network), Iceweasel (same as Firefox) is then closed, the following exception will be thrown on a subsequent start of the browser.
[Exception... "Component returned failure code: 0x8000ffff (NS_ERROR_UNEXPECTED) [nsIPrefBranch2.getBoolPref]" nsresult: "0x8000ffff (NS_ERROR_UNEXPECTED)" location: "JS frame :: chrome://torbutton/content/torbutton.js :: torbutton_update_status :: line 1947" data: no]The error message before the Exception reads, that Torbutton was unable to update the Torbutton settings directory.
This bug has started to appear since I've upgraded to 8.0~b4-1 (ie. 8.0 Beta 4) of Iceweasel, with 7.0.1 it worked. The Torbutton extension is at 1.4.4.1.
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