This is strange since many people say Firefox is bloated but im my opinion it looks about identical to how Chrome looks like, so they seem to define bloat in some other way.
What you would consider bload, I'd call clutter. I de-cluttered my Firefox to this way that I only see the tab-bar, a command-bar and the web page.
Both chrome and firefox have excellent session restore, so even if you need to update (which you usually don't), you won't really notice. Even session cookies are properly restored, as are partially filled forms, though some pages' scripts cause the form restoration to fail.
Toolbars have always been rare, and they certainly are now; it's probably possible to still install a toolbar extension, but I can't remember the last time I did. That may be more a change in typical extension style than in the actual browser, however.
(I use both browsers daily).
I do not see any of the additional stuff that the above poster mentioned. I use exactly one feature in chrome other than just it's web browsing at that is sync. Even then, I haven't interacted with sync since the first time I installed Chrome on my computer.