Take Video Screenshots (+ GIF Maker) – Get this Extension for 🦊 Firefox (en-US)

Full Page Screen Capture & Visual Feedback – Get this Extension

How to enable screenshots in Firefox - Quora

FireShot: Full Web Page Screenshots (♥♥♥♥♥) – Get this

FireScreen - Screenshot Editor – Get this Extension for 🦊 Firefox

Video Screenshot – Get this Extension for 🦊 Firefox (en-US)

Save Screenshot – Get this Extension for 🦊 Firefox (en-US)

Nimbus Screen Capture: Screenshot, Edit, Annotate – Get this

Copyfish – Get this Extension for 🦊 Firefox (en-US)

Full Page Screen Capture & Visual Feedback – Get this Extension

uView Floating Player - Picture in Picture – Get this Extension

FireShot: Full Web Page Screenshots (♥♥♥♥♥) – Get this

FireScreen - Screenshot Editor – Get this Extension for 🦊 Firefox

Need Advice - I still don't care about cookies - not blocking

This handy tool lets you record GIFs straight from your browser