关于此扩展

Most Recent Tab is about quickly toggling back to the last tab you were on using keyboard shortcut or toolbar button click. First developed in 2011 and updated to the new WebExtension API in 2017, MRT has been making Firefox slightly more convenient for over 10 years.

Handy when you're going through a list of links that keep opening new tabs and you need to jump back to the main tab, or if you're comparing things between two tabs, or any time you need to toggle between a pair of tabs.

The default shortcut is set to Control-shift-1 on Windows and Command-shift-1 on Mac.

There are two ways to set your preferred shortcut. See the screenshots for more information.

Easy way: In the Add-ons list in Firefox, click the gear, and Manage Extension Shortcuts. Click the box in Most Recent Tab's entry and press your preferred shortcut.
Old way: In Add-ons manager, click Most Recent Tab and then Preferences. You'll have to type in your shortcut in the format expected by Firefox, so this is no longer the recommended way, the other way is easier!

New in version 3.1, you can optionally set shortcuts to jump to the 2nd or 3rd most recent tabs. Enable them by picking a shortcut using the Easy Method above. Version 3.2 fixes a small regression in 3.1.

Source code is available on Github, under the Mozilla Public License 2.0.

开发者留言

Firefox does not currently allow extension developers to control what happens when you click on the current tab, so there's no way to make clicking on the current tab trigger the action. More information on Bugzilla #1246706.
Most Recent Tab is triggerable from other addons. Developers of other addons can trigger the action by sending a message using the runtime.sendMessage() API. Sample code on GitHub.

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3.2 的发布说明

Fixes a bug in 3.1 that caused the toolbar button to stop working.

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