User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-GB; rv:184.108.40.206) Gecko/20101026 Firefox/3.6.12 Build Identifier: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:2.0b8pre) Gecko/20101124 Firefox/4.0b8pre Trying to create a new tab while in 'group tabs' mode crashes if it is completely empty. Reproducible: Always Steps to Reproduce: 1. start firefox 2. make sure a single tab exists 3. press "group your tabs" icon 4. close the group, the page should be empty 5. go to firefox menu and select new tab Actual Results: firefox crashes Expected Results: firefox should either close the 'group tab' mode and add an empty tab or add a new group then an empty tab inside it without changing modes
Regression window(Cached hourly): Works(Because undo group feature is not implemented yet.Close browser after close all groups immediately): http://hg.mozilla.org/mozilla-central/rev/5c0a3f26e0ef Mozilla/5.0 (Windows NT 6.1; WOW64; rv:2.0b6pre) Gecko/20100910 Firefox/4.0b6pre ID:20100910082144 Fails: http://hg.mozilla.org/mozilla-central/rev/e522e8bf3524 Mozilla/5.0 (Windows NT 6.1; WOW64; rv:2.0b6pre) Gecko/20100910 Firefox/4.0b6pre ID:20100910100716 Pushlog: http://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=5c0a3f26e0ef&tochange=e522e8bf3524
Sam, could you add any crash report links from about:crashes? This could be one of those problems where the application is closing unintentionally, but not crashing.
Juan, After some prodding around with a debug build -- I've traced the problem to a buggy graphics card issue -- firefox requests the window be closed and the animation request causes the crash and it takes out firefox (with an app crash). I updated the graphics card driver yet again and the crash no longer happens so this bug can be changed to an unexpected behaviour but nothing as serious! :)
If any of those crashes are listed in about:crashes, please post a link. There might be some value in knowing how people could experience crashes, for reference. Thanks for looking into it.
Is this bug still an issue? Is the tab candy component the right place for this; it seems only tangentially related.
Marking confirmed based on Alice's regression range. Can we get a crash stack?
Crash stack would be very useful. Also, does this happen on Windows only?
I can not reproduce on latest nightly. Mozilla/5.0 (Windows NT 6.1; WOW64; rv:2.0b9pre) Gecko/20101227 Firefox/4.0b9pre ID:20101227030354 Fixed range: http://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=822e23ac1f71&tochange=4ca2a5e830ce
Does this bug still exist?
I can not reproduce this either (with trunk).
Sam K, if you could reproduce it and provide a crash stack as requested above, that would be great. Otherwise marking as worksforme, given all the reports.