What is Verizon recommending for it's customers during this latest security issue? I believe Verizon states that IE is the preferred browser but Microsoft is recommending not to use it till issues are resolved. Also MS recommends disabling Adobe Flash and install latest version of EMET. Also see "Microsoft Security Advisory 2963983".
I have tried using Firefox in the past and usually get error messages when trying to read Yahoo Mail but today it seems o.k.
I haven't seen anywhere that MS is actually recommending disabling Flash, either. But, FWIW, Adobe did release a Flash update this morning. I've installed the update in both Firefox and IE.
I have seen a few articles online today about this issue and what's being recommended. See Microsoft Security Advisory 2963983 for some solutions if you need to use IE. I have switched back to Firefox till IE issues are resolved.