Hi FwF and Eddy,
So you think polonus is wasting his time as a test pilot on Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.1b3pre) Gecko/20081126 Minefield/3.1b3pre ID:20081126035913 and also as a member of MozillaZine (mainly contributing to the NoScript add-on webforum section there), contributing to Bugzilla occasionally and also analyzing the workings of FF.
One reason we have that many bugs, because it is Open Software and you know that when the soup is tasty, there are many "tasters" to serve the soup that can have a little extra before the main group is getting the goodies.
There is no browser around at the moment that has been build with security in mind. None, period. End of discussion, the way the Internet works would not tolerate it, I assume...
You see that when you underbind the working of cookies, scripts, redirects etc. the work gets harder between the keyboard and the chair. I have turned this browser inside out, had it on my comp in what kind of configuration you like, experimented with all sort of filters, had good extensions and even better extensions and one extension I will never leave (NoScript), analyze all my leaks, every occasional crash, I have tweaked it to extremes, and I still return to it. Use Flock sometimes, SRWare Iron (the Chrome klone without the privacy issues GoogleChrome has) to render pages where Firefox is not working fully in optima forma. All traces of the browser leave my computer before I close it down, links I save for Flem.
For a browser with 14% market share Firefox 3.0 is not more insecure than other browsers are, that is my opinion and I have a good track record,
polonus