Hi all. Recently both of my browsers have been playing up, whenever I try to go to a site they both say that the certificate has expired, or firefox sometimes says that it can not be accessed because "The certificate is not trusted because it is self signed.", which it says for sites like paypal, ebay and hotmail. I have to add exceptions to every site that involves logging in in some way, and sometimes it does it on websites without login boxes aswell. And the format of the log in pages is all screwed up, like the html is not being read correctly, just a white background and the log in boxes, i'll attatch a picture;
And ideas? This weird formatting generally occurs on pages where I have to log in to something, and its kinda unnerving as all these security messages keep going off telling me to stop as the webiste is not trusted. My friend says it may be related to my router or my firewall (or rather my routers firewall?) but I dont know how to check these. I have cleared all my cookies, cache and history from both browsers.
Any help apprectiated, thanks in advance