User Agent: Mozilla/5.0 (X11; Linux i686; rv:13.0) Gecko/20120327 Firefox/13.0a2 Build ID: 20120327042012 Steps to reproduce: Click on the bookmark star to bookmark a youtube video page. Actual results: Bookmark star does not appear. (On clicking twice, the dropdown edit dialog does not open either.) After switching away from the tab and back again, the star is there, and the bookmark has clearly been set, so it seems a display issue. Expected results: Bookmark star filled in (as happens on other pages). NB This is probably a regression, as it used to work.
Please, try safe mode http://support.mozilla.org/kb/safe+mode
(In reply to Marco Bonardo [:mak] from comment #1) > Please, try safe mode http://support.mozilla.org/kb/safe+mode I've now seen it in safe mode. As the behaviour is intermittent, it's hard to reproduce it. It also doesn't only happen on youtube.com - that was a spurious correlation as it turned out.
So, may be a "classic" focus stealing bug, where the Flash plugins steals all the actions. does it happen if you temporarily disable Flash?
(In reply to Marco Bonardo [:mak] from comment #3) > So, may be a "classic" focus stealing bug, where the Flash plugins steals > all the actions. does it happen if you temporarily disable Flash? In that case, wouldn't the click not be registered by the bookmark star at all? This is not the case - the bookmark is in fact set, the star is just not filled. But I will check.
I see this sometimes, at least with my profile, on GNU/Linux x86_64. Maybe other bugs have been filed about it.
It happens to me often with the HTTPS Everywhere extension, at identi.ca (both before and after StatusNet → pump.io transition): https://trac.torproject.org/projects/tor/ticket/9209
Steps to reproduce: 1. Install HTTPS Everywhere (v3.3.1 in my case) https://www.eff.org/https-everywhere 2. After restart, go to http://identi.ca/evan (or https://identi.ca/evan, it doesn't matter). 3. Click the star button. Reproduced with a new profile with HTTPS Everywhere in 2013-08-15-03-02-03-mozilla-central-firefox-26.0a1.en-US.linux-x86_64 and 24 Beta 2. But then, the reporter has seen it in safe mode…