If so, and if the settings folder inside it was updated recently, you might have used the Refresh feature during your update. This can happen when Firefox says it is starting slowly and you can speed it up by restoring some default settings. I'm sure there is a way to set up your Firefox to work with the avast! Normally it involves importing their certificate into the Authorities tab of Firefox's Certificate Manager. If you could send me the old version of firefox for MAC OS 10.10 that should work for now!This can happen when Firefox says it is starting slowly and you can speed it up by restoring some default settings.
Browser cache (also know as Internet cache) contains records of every item you have viewed or downloaded while Internet surfing.*https://support.mozilla.org/kb/Secure Connection Failed We have seen reports that the time as set via an internet based time service was so much out of sync that an error occurs, so if that is the case with you this service or try to switch to another time service.warning icon), click More Information, then View Certificate, what is listed in the "Issued by" section and on the details tab under hierarchy? ---- Do have an Old Firefox Data folder on your desktop? So when you visit the same page for a second time, the browser speeds up display time by loading the page locally from cache instead of downloading everything again.Although storing Internet cache makes web browser faster as it usually takes your computer less time to display a web page when it can open page's elements or even the entire page from your local Temporary Internet Files folder, You sometimes want to overrule the Internet cache, for Example to see changes you made to a webpage you just uploaded.