Well, for what it's worth I just tried it on FF (22.0), and had no problems at all. No certificate errors, no rendering problems, nada. I have maybe 8 plug-ins running, mostly common stuff like Adobe Acrobat. FireBug is currently disabled, as are AV plug-ins.
Originally Posted by TinDragon
Of course, it's possible they fixed some of those issues since late last week - I only just tried it tonight. Works fine for me on Chrome too, although it does put up a little warning icon on some pages about some "non-secure" content... that's caused by user-linked images. I haven't tried IE.