uBlock0_1.62.1b1.firefox.signed.xpi Corrupted in Firefox 56.0.2 (64-bit)

[honorgog]

Prerequisites

• I verified that this is not a filter list issue. Report any issues with filter lists or broken website functionality in the uAssets issue tracker.
• This is NOT a YouTube, Facebook or Twitch report. These sites MUST be reported by clicking their respective links.
• This is not a support issue or a question. For support, questions, or help, visit /r/uBlockOrigin.
• I performed a cursory search of the issue tracker to avoid opening a duplicate issue.
• The issue is not present after disabling uBO in the browser.
• I checked the documentation to understand that the issue I am reporting is not normal behavior.

I tried to reproduce the issue when...

• uBO is the only extension.
• uBO uses default lists and settings.
• using a new, unmodified browser profile.

Description

When attempting to install the latest uBlock0_1.62.1b1.firefox.signed.xpi version on Firefox 56.0.2 (64-bit) on a Mac, I receive the following message "This add-on could not be installed because it appears to be corrupt." I attempted a clean installation as well as the "drag onto open Firefox window" without success. I also attempted to manually add it directly to my profiles "extensions" folder without success. When doing that, the error doesn't appear but uBO doesn't load nor is it listed under Tools->Add-Ons.

A specific URL where the issue occurs.

My default homepage is https://www.google.com but this isn't material to the issue.

Steps to Reproduce

1. Start Firefox.
2. Drag uBlock0_1.62.1b1.firefox.signed.xpi to the open window.
3. Error appears regarding corruption.

Expected behavior

I had hoped that uBlock0_1.62.1b1.firefox.signed.xpi would install as Firefox 56 does require signing.

Actual behavior

Error message appears regarding extension corruption.

uBO version

uBlock0_1.62.1b1.firefox.signed.xpi

Browser name and version

Firefox 56.0.2 (64-bit)

Operating System and version

MacOS 10.13.2

[stephenhawk8054]

uBO 1.62+ is not meant to be supported on Firefox 56. There's uBO legacy version for that.

[freezer2022]

https://github.com/gorhill/uBlock/wiki/Firefox-WebExtensions