User-Agent: Mozilla/5.0 (Windows NT 6.0; rv:2.0b12pre) Gecko/20110206 Firefox/4.0b12pre Build Identifier: Mozilla/5.0 (Windows NT 6.0; rv:2.0b12pre) Gecko/20110206 Firefox/4.0b12pre I enabled permanent PB mode from the UI. When Firefox is closed, the "Enter private browsing" entry is always shown. When I start Firefox, it still takes some time until it updates the jumplist, then the entry is gone, but just until I close Firefox. When Firefox is closed and I select that entry, Firefox will not open. When Firefox is already open and I select that entry, nothing changes, and I see this exception: Error: [Exception... "'Abort' when calling method: [nsICommandLineHandler::handle]" nsresult: "0x80004004 (NS_ERROR_ABORT)" location: "<unknown>" data: no] I guess the exception comes from the patch for bug 601253 Reproducible: Always Steps to Reproduce: 1. enable permanent PB mode from the UI 2. close Firefox 3. click "Enter private browsing" entry in jumplist --- 4. start Firefox 5. click "Enter private browsing" entry in jumplist Actual Results: nothing changes Error: [Exception... "'Abort' when calling method: [nsICommandLineHandler::handle]" nsresult: "0x80004004 (NS_ERROR_ABORT)" location: "<unknown>" data: no] Expected Results: The entry should not be shown in either case / Firefox should just start in PB mode and update the jumplist immediately

Jim, what do you think we can do here? Basically we're not updating the jumplist entries in time...

Resolved due to per-window PB.