For some reason I'm plagued by especially rare bugs. This time my middle mouse button ceased to work in firefox exclusively. I can use it to copy stuff in terminal or to start another instance of a program clicking on the program's icon on the unity launcher bar.
But I can't use my middle mouse button to open a link in a new tab. That's quite annoying. The button click gets recognized, as the links highlight as I middle click them. A new tab just isn't opened.
I already disabled all addons to firefox to see if it's an addon problem. Turns out it's not. Even purging firefox and reinstalling didn't help.
I own a Logitec MX510 mouse on my HP laptop that also has Synaptics TouchPad. On the touchpad the middle and left button never worked in ubuntu at all (firefox or anywhare else).
Any ideas what could be wrong? What else could I try.
Now the problem has reached my work PC as well. After the latest firefox-update (to version 6.0.2): The right mouse button on my work PC (Desktop) does open the context menu, but as soon as I move my mouse even the tiniest bit, the menu closes. So the problems might be related to the 6.0.2 update of firefox or not, but it's certainly suspicious that both PC have mouse problems ins firefox only.