Right clicking on a page will reveal the option to flip a coin or roll a dice.
Dice options allowed are: 4 sided, 6 sided, 8 sided, 10 sided, 12 sided, 20 sided and 100 sided.
You can see the source code on my GitHub repository.

Install

• License: Mozilla Public License 2.0
• Weekly downloads: 0
• Average daily users: 31
• Rating: 5/5 of 2 ratings
• Created: 2019-06-16 13:50:44
• Last updated: 2019-06-20 10:20:09
• Homepage:
• Support site and email
• Orig: https://addons.mozilla.org/en-US/firefox/addon/coin-flip-and-dice-roll/
• API: {990f182d-017b-407e-92ec-19be953f5909}