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QuickDrag Requires Restart
Extends the function of the drag-and-drop mouse gesture so that it can be used to load URLs, do a web search of selected text on a page, or save an image on a page. The successor to Super DragAndGo.
Images - All-in-one Internet Search (SSL & TLS)
Images - The #1 Images Search Add-on - Download Now - Free & Unlimited - "A must have add-on for Firefox."
(End-to-End Encryption & Secure Encrypted SSL Suggestions)
HTTPS
Binary App Dev
Google Image URL Search Engine
Usage: Of the Image you want to see similar versions enter the entire link https://... to the search bar and select this engine.
This is a google image search as a search engine add-on, NOT AN EXTENSION.
Limited features but way higher safety.
Simple Steganography Requires Restart
Hide messages in PNG-32 images, extract them via context menu. The text is embedded invisibly by a "Least Significant Bit" algorithm.
You can also encode very short messages by re-sorting text lists and extract them via context menu.
NASA Images Search
NASAImages archives NASA’s current and legacy digital imagery records. http://nasaimages.org/
Flickr Commercial Use Allowed (Search Engine)
This extension installs Flickr's search engine in the browser and allows to look up for images licensed free of charge for commercial use (Creative Commons) directly form the search bar.
Desktop Wallpapers fast search
Search free desktop wallpapers on 20+ popular wallpapers websites
Reddit - All-in-one Internet Search (SSL & TLS)
Reddit - The #1 Reddit Search Add-on - Download Now - Free & Unlimited - "A must have add-on for Reddit."
(End-to-End Encryption & Secure Encrypted SSL Suggestions)
HTTPS
Binary App Dev
Google Image SSL
Search via Google Images securely.
This search add-on is language-independent.
Tooltip Plus Requires Restart
Show tooltips for links and images with URLs, icons, alt text, and long titles.
Black Google Mobile
Google search with a black background that saves battery power, loads faster, uses less bandwidth and reduces eye strain. Basic and modern modes, black image searching, search settings for country, language, result count and filtering level.
Flickr - All-in-one Internet Search (SSL & TLS)
Flickr - The #1 Flickr Search Add-on - Download Now - Free & Unlimited - "A must have add-on for Flickr."
(End-to-End Encryption & Secure Encrypted SSL Suggestions)
HTTPS
Binary App Dev
Blog Better! - Writing Helper by Zemanta Requires Restart
Increase your pageviews and improve your blog posts with related posts, images and links!
To create your own collections, you must have a Mozilla Add-ons account.