Don't forget to add the WebRTC
Yup, already disabled. Thanks.
always use the private browsing of Firefox as it gives you more protection it can remove all traces of your browsing activity and it can protect you from keyloggers and block websites from tracking your PC.
Although I auto-delete most cookies and history, removing all traces of browsing activity isn't high on my priority list since I use whole disk encryption, and no one else has access to my computer. I'm not sure private browsing will protect you from key loggers though.
it is likely you are browsing anonymously except for IP.
I only ever connect via VPN +/- Tor, so no IP concerns there. This set up doesn't make you anonymous, though. By changing all these things I'm very aware that I have a probably unique browser fingerprint. You have to go to extra steps to spoof what you can to blend back in to the crowd.