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I'm experiencing an issue with Thunderbird that started unexpectedly. Whenever I try to access my email, I get a warning message saying that "The site certificate is not valid for this server. Someone may be trying to impersonate the server. It is not recommended to proceed."

I'm not sure why this error has suddenly appeared, as everything was working fine before. I haven’t made any changes to my email settings or installed new software recently. Has anyone else encountered this issue or knows how to resolve it?

Hi, I would like to export my contacts in .vcf format in order to maintain the saved images. The objective is cleaning the contacts and import them back. Do you have any procedure to export all and single contacts in vcf? Thanks

I now have the problem that I am on a large payment page and switch back and forth between FF and another app (to copy payment-relevant data). Unfortunately, FF does a page refresh every time it is brought back to the foreground from the background. And all the data already entered is lost! This is a fairly well-known problem with FF on Android! Chromium manages this better and leaves the memory management to Android. Why can't FF do that? Why can't I switch off this feature? I can't edit any relevant websites with the FF. I have to use Chrome for that! Hooray!

I am getting a number of messages "Sending of the message failed. SSL received a record with an incorrect Message Authentication Code. The configuration related to mail.tobymanning.co.uk must be corrected" when I send an email

I can't seem to figure this out on my own so i'm hoping someone here can help.

I have some unwanted emails showing up as suggested when i right click on a browser tab and select "share" and i don't know how to find where they are saved on the browser to be able to delete them so they're no longer auto-suggested. Right clicking on the suggested email doesn't show any options and they are not saved in auto-fill either.

Havent tried deleting all cookies/history, but im not sure if that would help.. Anyone have any ideas?

Firefox would not open so I ran an old installer I had and now I've lost everything. No Bookmarks, no history, no add-ons. is there anyway to get it all back? Is everything in a file somewhere?

I have done every single thing including reinstalling Firefox. The Youtube videos will not buffer in my Firefox browser in ANY mode, safe, troubleshooting, etc. I got it to start after reinstalling then about a minute into the video it started buffering again. I can watch vids in ANY other browser, and am connected by ethernet to my router.

I have cancelled my subscription which you say you will return if I cancel within 30 days? Is that correct. Also I want to cancel the VPN on my desktop and phone now but I can't see how I can achieve this. I would be grateful for your help.

Thank you.

PG&E is notifying its customers on its website that Firefox (among others) is "unsupported."

   "Your browser is unsupported.
   "Please use a different browser. To learn more, visit pge.com/supported-browsers."

I have not noticed any problems viewing/interacting anywhere on their site and would like to know why they are making this warning. I suspect that Mozilla.org would have a similar concern.

Secure Connection Failed

An error occurred during a connection to www.youtube.com. PR_END_OF_FILE_ERROR

Error code: PR_END_OF_FILE_ERROR

   The page you are trying to view cannot be shown because the authenticity of the received data could not be verified.
   Please contact the website owners to inform them of this problem.