Search Image On Google Firefox. Then right click an image and select the search google with this image option. You can add it to firefox from this page and this is the chrome extension page.
You can also choose more than one and they will be shown in a submenu. Re implements the google image view image and search by image buttons. It comes very handy solution when you are looking for the other sizes of a specific image.
Search by image is an alternative firefox and google chrome extension that also adds the same option to the context menu.
Hold down the mouse drag. Re implements the google image view image and search by image buttons. Adds an option to the context menu to search with an image on google bing yandex tineye saucenao iqdb or custom search engines. You can add it to firefox from this page and this is the chrome extension page.