Image Search Options provides a set of highly customizable reverse image search context menu options. This Firefox Extension adds a set of customizable context menu options to the right click menu of images. These options allow for fast and efficient use of the IQDB, SauceNAO, TinEye, GazoPa, Ascii2D, Cydral, Yandex, Baidu, Google, (etc…) reverse image search engines.
Here is a little more information about including Google Images support:
Google Search by Image support will be added by default in an upcoming version, but to add it now do the following:
1. Export your Site Settings using the ‘Export’ button in the extension’s options.
2. Save the file to your desktop, and open it with notepad. (very important)
3. At the end of the file add a new line exactly as it appears here.
4. Save the file and import it back into the extension using the ‘Import’ button.
Want to learn more? This add-on for Firefox is a great one if you work with images a lot. It makes searching for images super easy. You can pick up Image Search Options from the Firefox Add-ons website.