Dealing with a slow PC or internet? These browsers are built to run smoothly anyway.

Google today released Chrome 39, the company’s first 64-bit browser for OS X from its “stable” branch. The update also patched 42 vulnerabilities and paid $41,500 in bounties to the bug hunters who ...

Mozilla now automatically delivers the 64-bit version of Firefox to Windows users with compatible hardware, the open-source developer said this week. (Firefox can be downloaded here.) “Users on 64-bit ...