Guys...the FF 38.x release was for me probably the most stable release on our OS/2 platform.Just about everything I tried worked correctly, including Maps with heavy usage...however, the browser was getting outdated, so less and less stuff would actually allow you to use the numerous features, they simply became inaccessible.
FF 45.x here had definitely gone backwards in terms of stability and so forth, but, the browser at least allows the vast majority of the web site specific features to work. In my case, the Maps that were never an issue on 38.x are now a hit-n-miss on 45.x, but the G+ stuff now completely works!
I figured I might as well toss this one in because the thread so far has a mix of responses dealing with various FF releases.
The team is making great progress on 45.x, I for one wish that they would do another full release so we have a bit less of that debug overhead - my XUL.DLL is 435M in size, compared to 37M in 38.x, and despite the various highmem load options I have tried (code, data, or both) the browser pretty much eats up a good 1.5-1.8G in less than 12 hrs of use.