I still think FF is the most open of all the browsers. No one can compete with their selection of addons all developed by their users to offer improvements in our browsing experience.
The balance may change as Chrome takes over but I personally won't switch to Chrome itself rather, if need be, to one of its more secure varieties like Iron. Google may say it will never be evil but it already has become a major corporation that puts profits over ideals from what I see. Google will never go head to head with regulators over net neutrality on an idealistic basis because they have too much to lose if lawmakers threaten to tax overseas profits. They give into NSA/unwarranted requests because they have $100 billion overseas that they can get back over here with a single day of "offshore profit amnesty" when the time is right. Same with ISPs allowing the NSA access to their records. They get no regulation on telephone fiber optic cables or cable company "lines" in return for just allowing the government access.
The big boys are already deciding what we have access to on the "worldwide" web. Search engines routinely drop links to news events that were widely reported only a few years ago. They may do it on the premise that newspapers have a right to their content but the fact that something happened 5 years ago which was widely reported and there is no access to that data now seems problematic. The idea that anything published on the web is there forever is the same as the judicial system, if you have enough lawyers something can disappear, if not you are stuck with the consequences.