Prior to versions 9 and 10,Firefox was a moderately fast, relatively trouble free browser packed with features which made it a winner.
Regrettably, something seems to have gone wrong with the last two versions,which seem wracked with mysterious issues,causing freezing and shutdowns on a frequent basis.I doubt these are unique to my particular configuration,as these problems didn't occur prior to version 9.
One recent change in versions 9 and 10.1, seems the allowing of over riding compatibility with extensions ,which previously may have been considered incompatible.
Whatever the cause, these issues are severe enough for me to consider a browser change. These problems have been reported.
Regrettably,owing to the present difficulties,it is hard to recommend the current versions. Version 8 was good if not particularly fast.
License: Free Details...