Running another browser along side TOR

Question

If I run TOR and another browser (say Firefox) and surf on both at the same time, one downloading and surfing the other does this compromise the security/anonymity of TOR?

Answer 1

As the Tor browser uses it's own resources, and even creates an encrypted connection to the Tor network, no.

Unless, of course, you get malware in Firefox. That is the malware fault, though, and not just the fact of having two browser open