Same with me. I had used FF for about 10 years but in 2010 it started having too many problems. For instance it would not allow access to the comments posted on Mish Shedlock's site. I switched to chrome. Chrome won't allow you to right-click on a web-page to email a link, and right-clicking on an image does not immediately show the source URL, but other than those 2 things it's acceptable. FF seems not to have recovered to what it was before 2010.
I am still with the 3.6 Firefox and am about ready to dump it.
FF has always been and continues to be a memory hog.
I also find that many of the newer flash and video websites will not play in FF but will play in Chrome.
I just hate to learn a bunch of new extensions/add-ons, and Chrome doesn’t have some that I use with FF.
Thanks for the heads up. That's a serious deal-breaker for me.