Good read and I am a Chrome and FireFox supporter, although have switched to Chrome for most browsing now.
Although for work related stuff I am strictly IE, cause it is better integrated into Windows overall for authentication, etc. In general our sites are all standardized for IE.
There are some vulnerabilities with FireFox and others that you have to be weary of, since they are open source, finding these are much easier, so be sure to keep your browsers up to date and do not used those autofill/password remember options...very dangerous unless you like having your identity stolen.