Is that how Facebook™ or Google™ operate, sending every single component
via HTTPS?
No. Only the vital personal settings, password stuff is done that way.
As for not letting people know what pages you are browsing, well, I
don't now. Does Google™ offer a way to not let wiretapping people know
what pages you are searching? Probably. We Geritol™ Generation users
aren't exactly sure to tell you the truth.