Форум поддержки Firefox

I recently received a request from AVG to have an add-on - AVG Online Security - which will protect against phishing and malware sites. There was a note from Firefox that Firefox does not monitor this add-on.

I use AVG Virus Protection - free copy - and it seems to be doing its job; although, I have been thinking about buying the software.

Has anyone used this add-on? Is it all right to install? Is it necessary to install? Since I changed internet service providers, I have not seen much in the way of phishing and AVG Virus Protection prevented me from accessing two websites it said were questionable.

When I sync passwords between my laptop and desktop what happens?

Do all my passwords appear on both machines, or

do just the passwords from on device replace the passwords from the other