Install on Firefox

Install 7.3.9 from Mozilla
Version 7.3.9 (latest stable release) - 780109 - released on 3/25/2020

Install on Chrome

Install 7.3.9.0 from Chrome Web Store
Version 7.3.9.0 (latest stable release) - 785KiB - released on 4/1/2020

Install on Edge

Install 7.3.8.0 from Microsoft Edge Store
Version 7.3.8.0 (latest stable release) - 742KiB - released on 3/13/2020