On the page, FAQ: Firefox Hardening, i changed my stance on the CanvasBlocker add-on for Firefox. I think it's still a beneficial addition to Firefox, however it should be configured to avoid the CSP issue if used in conjunction with uBlock Origin and/or uMatrix. To do this, you need to enable 'Expert mode' and then on the 'Misc' tab, disable the option 'Block data URL pages'.
For the Firefox Configuration Guide for Privacy Freaks and Performance Buffs i updated the information for CanvasBlocker.
I updated and rearranged the add-ons on the Firefox Extensions – My Picks page. The list of recent changes can be seen at the bottom of the page.