Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.8b5) Gecko/20051005 Firefox/1.4.1 ID:2005100500 repro: 1. Open FF 2. open a number (3 or more) of tabs (blank tabs is ok) 3. close the last tab (!important) and 1 other tab 4. go to bookmarks and open a page in a new tab 5. drag the last tab you opened to any place on the tabbar 6. now drag that tab back to the last (right) position result: 1. the tab does not move to the last position 2. the tab content reloads 3. there is no link from tabbar to tabs anymore 4. no other tabs can be selected 5. in JSC strict there sometimes is a warning: Error: uncaught exception: 2147500037 6. keep JSC open while closing FF, JSC strict gives Error: uncaught exception: [Exception... "Component returned failure code: 0x80004005 (NS_ERROR_FAILURE) [nsIWebProgress.removeProgressListener]" nsresult: "0x80004005 (NS_ERROR_FAILURE)" location: "JS frame :: chrome://global/content/bindings/tabbrowser.xml :: :: line 2037" data: no]

related to Bug 311200 ?

exception 2147500037 (acc http://silver.warwickcompsoc.co.uk/mozilla/misc/nserror ) = Code: 0x80004005 (2147500037, -2147467259) Name: Failure (NS_ERROR_FAILURE) Module: <unknown> Serverity: Failure (1) Number: 16389

Yes, this is related to bug 311200. http://lxr.mozilla.org/seamonkey/source/toolkit/content/widgets/tabbox.xml#264 is where it's throwing.

Peter, I assume this bug has been present since tab drag&drop landed (can't test ATM)?

(In reply to comment #4) > Peter, I assume this bug has been present since tab drag&drop landed (can't test > ATM)? Nope, there is some weirdness going on which i need to properly investigate but this bug definitly regressed between: works in 20051003 2217pdt build fails in 20051004 0252pdt build and was not fixed by bug 311090 or Bug 310993

testcase + explanation follows

repro the problem in much earlier builds (fails in 20050901, haven't checked before that date yet) repro: 1.bookmark the testcase 2.follow steps of comment 0 and use the this testcase for step 4 !

As said, this is somehow fishy. I can sometimes repro the testcase with older builds and sometimes not (I used a new created profile for every build) It's probably best to ignore all ecept the regressionwindow 20051003/20051004

(In reply to comment #5) > Nope, > there is some weirdness going on which i need to properly investigate but this > bug definitly regressed between: > > works in 20051003 2217pdt build > fails in 20051004 0252pdt build Hmm, looking at http://bonsai.mozilla.org/cvsquery.cgi?treeid=default&module=PhoenixTinderbox&branch=MOZILLA_1_8_BRANCH&branchtype=match&dir=&file=&filetype=match&who=&whotype=match&sortby=Date&hours=2&date=explicit&mindate=2005+10+04+02%3A52&maxdate=2005+10+03+22%3A17&cvsroot=%2Fcvsroot I see nothing that should have caused this. I can definitely reproduce this on the branch, though. I just used a bug query as the bookmark for step 4, the page that's loaded shouldn't matter.

Fixed by checkin for bug 311295 (branch).

*** Bug 312044 has been marked as a duplicate of this bug. ***

Verified fixed (actually, WFM) using Win FF 1.5.

The original summary for this bug was longer than 255 characters, and so it was truncated when Bugzilla was upgraded. The original summary was: Error: uncaught exception: [Exception... "Component returned failure code: 0x80004005 (NS_ERROR_FAILURE) [nsIWebProgress.removeProgressListener]" nsresult: "0x80004005 (NS_ERROR_FAILURE)" location: "JS frame :: chrome://global/content/bindings/tabbrowser.xml :: :: line 2037" data: no]