Notice
This page show a previous version of the articleBookmarklets
A bookmarklet is a tool that you can keep on your bookmarks bar that performs an action when you click on it. Using a bookmarklet is probably the best way for an advanced contributor to link sentences that are not already indirectly linked. (See Introduction to Linking.)
To install a Tatoeba bookmarklet easily, see "Drag-and-Drop" immediately below. For a more involved procedure, see "Build Bookmarklet by Copying Its Contents".
See Sample Workflow Using a Bookmarklet to Link for instructions on how to use a bookmarklet to link sentences.
A bookmarklet will work the same way for any browser. It does not require you to install any browser extension.
Drag-and-Drop
If your bookmarks/favorites toolbar is not displayed already, open it by right-clicking in the toolbar area and checking "Bookmarks Toolbar" or "Favorites Toolbar". Then go to Tools for Tatoeba.org Members and drag one or more bookmarklets from the top of the page to your bookmarks toolbar. You will probably find that "Link to this Sentence - A" is the easiest one to use.
Build a Custom Bookmarklet by Copying Its Contents
If you want to build a custom bookmarklet by copying its contents rather than performing drag-and-drop on a premade one, create a bookmark from any web page, change the name as desired, and set the "Location" or "URL" field to the bookmarklet string. (You can find the contents of Tatoeba link boomarklets here.) This should not be necessary for most people, however.
See Also
See the Wikipedia page on bookmarklets or this short introduction for more details on bookmarklets in general.