I recently switched from Safari to FF on my desktop Mac for the extensions, but I miss the easy access to certain functions that I had in Safari. For example, is there an easy way to toggle Javascript in FF? Other than that, no major issues.
Yes. Click the lock icon next to the URL bar, then two more clicks and you get the Page Info window, then Permissions tab. Yes, it's convoluted. For the convenience of a one-click bar icon, use extensions (I use YesScript). To disable JS globally, there's a "hidden" option in about:config, can't find a non-hidden setting right now.