ScrollAnywhere 9.2
by Juraj Mäsiar
Scroll without touching the scroll-bar! 
Press Middle (Right / Left) mouse button anywhere on the page to scroll just like with scrollbar.
Features also:
- "grab and drag" scrolling
- customizable scrollbars!
- the Momentum auto-scroll
About this Add-on
It enables you to drag scrollbar with your middle (or right / left) mouse button without actually touching a scrollbar. Just hold the middle mouse button and move up-down or left-right. You can also change the behavior to simple "grab and drag" style.
Short preview video here (0:12)
Warning: very addictive! :)
Features:
- Momentum allows you to throw page to scroll it faster (just like on your phone)
 - Middle / Right / Left mouse buttons are supported, see the Options page
 - Customize scrollbars - make them thinner, change color or hide
 - Auto-disable on specified domains / sub-domains
 - Grab and drag scroll like on your phone
 - Multiplier to speed-up or slow down
 - On key down enable / disable
 - Custom scrolling cursor
 
Contribution:
-         I've spend more than 1,000 hours developing this add-on.
Please consider supporting my work by:
Thank you! :)
Your donation will help me keep this add-on working in future versions of Thunderbird!
 
Social media: Facebook / Twitter
Known issues:
- does not work on https://addons.mozilla.org/ (blocked by Thunderbird)
 - does not work on Thunderbird internal pages like "about:addons" (blocked by Thunderbird)
 - does not work in "PDF view" - broken by Thunderbird 60
 - does not work in "reader view" (blocked by Thunderbird), vote for bug
 - does not work on other extensions pages like options page of some addon (blocked by Thunderbird)
 
Be aware:
- Linux users may want to enable "Don't block default button action" option in Options/Advanced - to enable 'Paste' with middle button again.
 - in some Linux versions you may need to disable "middlemouse.contentLoadURL" in "about:config" to avoid navigating to URL from clipboard when pressing middle mouse button
 
Recently added features:
Tags: anywhere, button, cursor, drag, grab, grab drag, grab and drag, infinite, left, middle, momentum, mouse, move, page, right, scroll, scroll page, scrollbar, scrolling, throw