My laptop broke down a few weeks ago so we sent it to the factory for repair. It got back today. I installed Windows again, made a back-up, then I downloaded my anti-virus programme and next thing I did after that was downloading Firefox (I prefer Firefox over Chrome). Everything was okay, I logged into all my accounts one after another to save my passwords (I'm a bit of an airhead) and started surfing Tumblr after I was done. About an hour later I was still busy on Tumblr when it suddenly didn't want to load. I reloaded the page and then it told me there was an error and the page could not be loaded. It also says something about the OCSP-answer not being verified and this is the error-code: sec_error_ocsp_future_response Then I tried on Chrome and it worked (though the site only works half in Chrome) and even on Internet Explorer it worked just fine. I don't have any other issues with Firefox. All my pages load perfectly, nothing looks wrong - it's really just loading Tumblr that it won't do. Nonetheless, it's very frustrating because Tumblr is probably the one site I use the most, and Chrome doesn't work optimally either. I hope you can help me. Sorry, I could not find the answer in any of the suggested questions. Sincerely, Miss Fortune