Aaaaaargh

I am having major issues at the moment trying to comment on peoples blogs and edit my own.....I simply can't do it. I click on the comment links or on the little pencil icon on my blog and nothing happens. I've tried opening them in new windows and in new tabs and zilch! I don't know whether the issue is with Blogger, Firefox or my lap top but I can't seem to do anything except post here and on the challenge blogs I belong to! If anyone has any ideas please then I'm all ears but probably won't be able to do anything as the technical part of the relationship is at work this evening lol