Image Search Options:

Image Search Options provides a selection of highly customizable context menu options for images.
These options allow for fast and efficient use of many different image search related tools such as IQDB and SauceNAO.

The Image Search Options extension is currently available on both Chrome and Firefox.
If there is enough interest in support for additional browsers, coverage can be expanded...

Download Image Search Options:

Image Search Options for Chrome - Chrome Web Store

Image Search Options for Firefox - AMO