Recently I have become unable to connect to Paypal. I get the "Unable to Connect" message.
The status message shows "Looking up..." and then "Connecting to Paypal.com", but almost immediately the "Unable to Connect" page appears. I've cleared the cache and cookies, but I don't think that's the problem since I also cannot connect using Internet Explorer. Firefox does successfully connect to a secure bank site, so it isn't just a security problem.
Page Info says,"This website does not supply ownership" and "Connection not encrypted", which might be a hint. I was using Firefox 19.0 but updated to 21.0 and that didn't help.
So, I assume something is redirecting a request to Paypal to a scam website that has been removed.
I know there are ways to redirect DNS requests that can be hacked on my computer, but I don't remember how to find them.
Can you help?
You can also check for problems with security software (firewall,anti-virus) that blocks or restricts Firefox, possibly after detecting changes (update) to the Firefox program.
Remove all rules for Firefox and the plugin-container from the permissions list in the firewall and let your firewall ask again for permission to get full unrestricted access to internet for Firefox and the plugin-container process and the updater process.