Mozilla sent Firefox Version 27.0.1 to the release channel. If you've been experiencing the same instability as I have with Version 27.0, hopefully the fix noted below will solve the problem.
There is no indication at this time of security fixes.
Fixed in Firefox 27.0.1
- FIXED -- 27.0.1 - Fixed stability issues with Greasemonkey and other JS that used ClearTimeoutOrInterval
- FIXED -- 27.0.1 - JS math correctness issue (bug 941381)
- Unresolved -- Moving Firefox to background while playing a flash video in full screen mode and bring it back to view will freeze the app (see 809055)
- Unresolved -- Text Rendering Issues on Windows 7 with Platform Update KB2670838 (MSIE 10 Prerequisite) or on Windows 8.1 has a workaround (see 812695)
UpdateTo get the update now, select "Help" from the Firefox menu at the upper left of the browser window, then pick "About Firefox." Mac users need to select "About Firefox" from the Firefox menu.
If you do not use the English language version, Fully Localized Versions are available for download.