Using TinEye for Firefox
How to install the extension
Visit the Firefox Add-ons page to install the free official TinEye browser extension.
How to use the extension
Right-click on any web image and select Search Image on TinEye from the context menu. Results are displayed for you at TinEye.
How to configure the extension
You can choose whether TinEye opens in the current tab, in a new tab in the foreground, or a new tab in the background and select the order your results will be returned (Last Used, Best Match, Most Changed, Biggest Image, Newest, or Oldest).
To set extension preferences, click on the three horizontal lines in the upper-right corner of your browser window and select Add-ons and themes.
Find TinEye Reverse Image Search in the list, click on the three horizontal dots to the right, and select Preferences. Alternatively, you can click on TinEye Reverse Image Search and go to the Preferences tab.
How to uninstall the extension
To uninstall the TinEye extension, click on the three horizontal lines in the upper-right corner of your browser window and select Add-ons and themes. Find TinEye Reverse Image Search in the list, then click on the three horizontal dots to the right and select Remove. Confirm this action by clicking the Remove button.