Middle clicking has started opening the bookmarks tab!

[Grand Dizzy]

I'm not sure if there's been a Firefox update today, but this has never happened before.

I middle-click a link to open in a new tab, but instead, this opens the bookmarks tab, which is very frustrating!

What's even stranger is that this doesn't seem to happen all the time!

Any ideas why this is happening?

[DanRaisch]

Does the same thing occur if you launch the application in Mozilla Safe Mode? http://kb.mozillazine.org/Safe_mode

[Grand Dizzy]

Oddly, the problem seems to have stopped now. So, never mind.