Don't know what I am doing wrong.
Every time I start Firefox to go online, it also opens (next to my e-mail provider which is my "home" page) some 16 or 17 "Firefox Start" pages simultaneously, producing some 17 extra tabs. After surfing around for a while I sometimes end up closing some 97 tabs or so (according to that stupid warning you get)
Can anyone tell me why this is happening? This has been going on for some weeks now