FoxyImage is a tiny multi-process extension that adds a number of Image related actions to the Context Menu.
Let me know if you want other functions added.

Note: None of my extensions contain any tracking, advertising or privacy infringement.

Features

• Multi Process Compatible
• Works on any site or local files opened by the browser
  (Firefox restricts some functions on some URLs.)
• Removes duplicate URLs
• Option to filter downloads (v1.3)
• Import/Export Preferences (v1.4)
• Container Support: New Tab will be opened in the same container (v1.5) (requires cookie permission)

Actions

• Rotate Left/Right & 180° (v1.5)
• Flip Vertical/Horizontal
• Reset
• Open Image in New Tab
• Copy Image as Data:URI (requires clipboardWrite permission) (v1.5)
• Save All Images (v1.1)
• Save Selected Images (v1.1)
• Open Selected Images in New Tabs (v1.1)
• Save All Image Links (v1.1)
• Save Selected Image Links (v1.1)
• Open Selected Image links in New Tabs (v1.1)
• Save All Target Images (from a link) (v1.1)
• Save All Target Image Links (from a link) (v1.1)
• Save Images from Tabs Left/Right (v1.5)
• Save Image Links from Tabs Left/Right (v1.5)
• Reload Image/All Images (v1.7)

Permissions Explanation:

• Access your data for all websites: Used to get remote Images
• Input data to the clipboard: Used to Copy to Clipboard (v1.5)
• Download files and read and modify the browser’s download history: Used to download images only
• Display notifications to you: Used to inform users

Install

• License: Mozilla Public License 2.0
• Weekly downloads: 9
• Average daily users: 816
• Rating: 4.4333/5 of 30 ratings
• Created: 2017-04-24 05:30:45
• Last updated: 2018-10-16 17:10:10
• Homepage:
• Support site and email
• Orig: https://addons.mozilla.org/en-US/firefox/addon/foxyimage/
• API: foxyimage@eros.man