See these threads at the mozillaZine forum.

Anyone here running v56 or older?

• https://forums.mozillazine.org/viewtopic.php?f=38&t=3049784&start=15

Firefox 66.0.4 released - fixes the non-working add-ons

• https://forums.mozillazine.org/viewtopic.php?f=38&t=3049775&start=0

You could look at the "Manual Method" on my old page: https://www.jeffersonscher.com/ffu/armagadd-on_2_0.html

Did Firefox 56 have the updated layout on the Options page? In that case, type cert in the tiny search box at the top of the page to get to the View Certificates button.

And also, it may be time to finally update Firefox. What is keeping you on Firefox 56?

ALL three of the Disabled Add-on Fixes were removed from Mozilla's site not long after they posted them there & advertised they were there. Thousands of people have been searching for them ever since!!

No reason was ever given for them to remove them.

I am using version 56 because Mozilla broke extensions that I've loved & used for years. The newer type of add-on they offered proved too difficult for the older extension developers to convert to. Therefore very few add-ons exist for Firefox 57 onwards.

Also they broke the login/password storage function.

I am using version 56 because Mozilla broke extensions that I've loved & used for years. The newer type of add-on they offered proved too difficult for the older extension developers to convert to. Therefore very few add-ons exist for Firefox 57 onwards.

There are tons of add-ons. I myself have posted numerous extensions for Firefox 57+ since they became easier to write. However, some add-ons for earlier versions did things extensions are no longer allowed to do in Firefox 57+ because Mozilla switched mostly to the Chrome extension API/permission model from the the old "anything goes" model.

Also they broke the login/password storage function.

In what way?

Look!! I am NOT interested in your opinions and I am NOT here for conversation!!

I just want the the disabled-add-on-fix-52-56 that Mozilla created then deleted!!!

If you can give that to me or point me to where I can get it... great!! If not then please go away!!

You might find that extension somewhere, but if you get tired of waiting or don't locate a trustworthy source, import the updated signing certificate yourself using the "Manual Method" on my page that I linked earlier:

https://www.jeffersonscher.com/ffu/armagadd-on_2_0.html

You'll notice that the certificate is pulled directly from Mozilla's source code repository, you don't need to trust me or other internet strangers on this.

(Added Screenshot)

See also:

• /questions/1289206 Fixes for disabled firefox addons are no longer available?

The certificate is the same for all Firefox versions. What differs in those extensions is the code to install the certificate and rerun the check to verify and re-enable the extensions.