Created attachment 597461 [details] Firefox tab bug.png User Agent: Mozilla/5.0 (Windows NT 6.1; rv:10.0.1) Gecko/20100101 Firefox/10.0.1 Build ID: 20120208060813 Steps to reproduce: Firefox started with a tab missing, but the web site was displayed. I killed Firefox and restarted it and a different tab on another window was missing but the web site was displayed (see pic). Sometimes when this happens there is a space between the orange Firefox button and the add tab (+) button. Actual results: See above Expected results: Obvious.
Just to add, I use Windows 7 32-bit, Vista 32-bit, and Ubuntu Linux 32-bit on the same machine, with the same browser versions, and the issue is the same on all operating systems. The screenshot was obviously Windows 7.
OS: Windows 7 → All
Priority: -- → P1
Does that also happen when you start Firefox in Safe Mode (http://support.mozilla.com/en-US/kb/Safe+Mode) with all add-ons disabled?
Have you seen this happen recently? Have you found the cause? Thanks.
(In reply to Aleksej [:Aleksej] from comment #3) > Have you seen this happen recently? Have you found the cause? Thanks. No, not since that time. I have not found a cause. I opened Firefox with all plugins and extensions disabled, but it still occurred. I had to lose all my open web sites by closing Firefox before it worked properly. It was not caused by a web site that I was on because it was happening on all operating systems. I've chucked it up to a gremlin that's in my computer, messing with my software from time to time. I am keeping my eye out for it so I can catch it in my mouse trap. lol
OK, thanks. Please reopen if it happens again.
Status: UNCONFIRMED → RESOLVED
Last Resolved: 5 years ago
Resolution: --- → WORKSFORME
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