The easiest way to open links in new tabs is with middle-clicks. But many touchpads (laptop mice) don’t provide an easy way to middle-click.

InstaClick solves this problem. It removes context-menus for hyperlinks. When right-clicking on a link, the link immediately opens in a new tab. Right-clicking anywhere else in Firefox (i.e., not a link) has the usual effect of displaying a context-menu. To temporarily cancel InstaClick’s behavior, hold the SHIFT, CTRL, or COMMAND key while right-clicking on a link. The context-menu appears as normal.

Presently, InstaClick has no user interface. To disable it, use the Firefox Add-ons Manager (Tools->Add-ons->Disable button).