I have three browsers on mine. Some of the things I need to use won't work on one, so I have to use another (sometimes I check on all of them if someone's mailed in to say 'this isn't working', but I don't have IE). It's no bother and it doesn't cause any issues with my computer. If I want to open one, I click on it when I open up t'web. If I need to use a different browser, I just click on the other one. It makes absolutely no difference to how the computer runs, and if gransnet isn't working on one browser I can still come and chat to you all by using another whilst it's being sorted.
There was a problem earlier, which has been fixed, which explains the earlier problem with Firefox. There are glitches on IE though, which we're trying to sort.