First, Type about:preferences#advanced<enter> in the address bar. Under Advanced, Select Update.

v57+; Type about:preferences#general<enter> in the address bar. Select Update.

Check the settings.

Also turn off Use a background service to install updates

Install Older Version Of Firefox {web link} Be sure to read everything here.

If you still want to downgrade, look under; I still want to downgrade. Click the Directory of other versions and languages link. Look for the directory of the version that you want. But, remember that old versions may have security issues.

You should also check out Firefox; Extended Support Release {web link} ESR Notes System Requirements

Thank you kindly!

I did revert successfully, and it's made my life much easier. Firefox isn't my primary browser but I like it very much as the secondary tool for when I have to do dual-browser tasks.

The most common of those, for me, involves a job responsibility where I set up scheduled pass-alongs of web clippings, news articles, etc., using the Hootsuite scheduler via the "Hootlet" extension.

Having that gone was pretty stressful- if this hadn't solved it, I'd have had to install Chrome, as that's the only other browser the Hootlet extension works with. I prefer Firefox!

So, much obliged to you for the solution.

Glad to help. Safe Surfing.

I didn't even make it past line 2:

Type about:preferences#advanced<enter> in the address bar.

Under Advanced, Select Update.

I can go to about:preferences#advanced -- but I can't find any "Advanced" aside from the fonts. Nor can I find an option to "select update."

What am I missing?

[v56+] Type about:preferences#general<enter> in the address bar. Select Update.

S-U-C-K-S-!

WOW, dropped the ball on this one!

Many Add-Ons have quit working. Suggested Add-Ons do NOT work.

I'm Linux now and Chrome is a no-no.

Try the Android version if you want real sucking.

I used to like Firefox.

Time for a NEW browser boys & girls!

Mozilla forgot that Firefox users used Firefox because IT'S NOT CHROME! We didn't want Firefox to try to compete with Chrome. We didn't care about speed. We cared about the add-ons we couldn't get on Chrome. So what did they do? They kill most of the add-ons for the sake of speed (which the users don't care about) and "updated" the add-on system to be more Chrome-like.

epic facepalm:::

RIP Firefox.