The second beta is intended to gather additional feedback while delivering enhancements and bug fixes to the Beta 1 released in July.
The next stage will be the launch of a Release Candidate 1, which is scheduled for 19 September.
Other new features include a spell check for online forms such as those used for blogging services, and a facility to leave feedback.
The browser has fallen behind its original development schedule to be available by August. Mozilla expected a release by 24 October, but the project currently does not currently list a launch date.
And, yep, it'll run Android rather than RiscOS
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Counterfeit code-signing certificates enabling hackers to hide malware being sold by cyber criminals
Certificates can be used as part of layered obfuscation to evade detection by anti-virus software