STR: 1. Install uBlock Origin from AMO. ER: The uBlock icon appears in the toolbar. Ads are blocked. AR: Nothing appears. No ads are blocked. I used mozregression to find a regression range. It broke in bug 1145470. Boris, can you take a look or find someone who can? This makes it hard for me to use Nightly.

FYI, there's discussion of this bustage in bug 1145470 already and a fix landed upstream already. In the mean time, you can set the pref from bug 1352513 as a temporary workaround.

Thanks. That pref does not appear to work for me. Not sure why.

Looks like that merge missed today's nightlies :(

There's a dev build of UBO on AMO that has a fix for this on uBO's side, on their development channel (bottom of the page). Direct link: https://addons.mozilla.org/firefox/downloads/latest-beta/ublock-origin/addon-607454-latest.xpi?src=ss