1. We need add-ons verified for Basilisk?
2. I downloaded this from AMO; is the problem that I used the Web Extension rather than the XUL edition from github?
3. How in the world did Ubuntu Modifications get installed? This is installed by default when the Canonical build of Firefox is installed, but how did it end up in Basilisk?
4. Has anyone else experienced this?
All help appreciated.
Basilisk 2017.11.13 (64-bit) on Ubuntu 14.04
ADDENDUM:
I removed the WebExt edition of UBO and installed UBO 1.14.18 XUL version. That was worse. I got a warning that it causes securty issues :
https://blocked.cdn.mozilla.net/i988.html