|This is not much of an answer but for what it is worth here it is.|
1. I use firefox but cannot answer that question and it may be better answered at the Mozilla site...some of the guru's around here may know.
2. There are hundreds maybe thousands of fake antivirus programs and want-to-be's so a name is practically invalid although there are two or three more infamous than others and can be easily googled ...there are many and getting tougher to remove.
Wish I could provide you with better answers.
Number one thing you need to do this:
Download ATF Cleaner from this link:
Double-click ATF-Cleaner.exe to run the program.
Under Main choose: Select All
Click the Empty Selected button.
Empty the restore folder. Go to start>control panel>system>system restore tab>check the box beside "turn off system restore>apply (takes a minute)>ok. Go back and uncheck the box to turn system restore back on>apply>ok.
Next create a new restore point. Go to start> run> type in msconfig> ok> click launch system restore> check the circle beside "create a restore point> next> name it today's date> create > click home > exit the system configuration utility> restart the computer.
FYI ...I do not solicit the Spywareblaster program, many help forums suggest it that's why I do.
You should consider adding "Spywareblaster" to your arsenol of antispyware tools, you can download it from this link Spywareblaster
Just download it,install it, and update it. Its free and runs in the background, so you don't actually run it, and re-writes malicious script before it can install on your computer. Look for updates weekly as there is no auto-update on the free version.
Glad we could help.