Add-ons allow you to add extra features and functionality to Firefox. For fixes and new features, keep your add-ons up to date. Here's how to update your add-ons.

Updating add-ons

1. Click the menu button and choose Add-ons. The Add-ons Manager tab will open.
2. Click the Extensions panel.
3. Click the gear icon in the upper-right area of the Extensions panel.

   

4. Choose one of the options below:

• Check for update: Checks any updates to your add-ons manually. If there is an update, you have an option to choose to update it now or later.
• View recent updates: When you click this option, Recent updates panel appear and it shows you last updated add-ons.
• Update Add-ons automatically: If you want to keep your add-ons up to date, select this option to update them automatically.
• Reset all add-ons to update automatically: If you want to update your add-ons manually, select this option. You can check for an update any time as manually.

Update settings for specific add-ons

You can individually adjust the update for each extension.

1. Go to Extensions panel.
2. Click "more" to see details page of a specific extension.
3. Select the default, on or off for automatic updates.
   If you choose the off; check for updates links will also appear on the details page of that extension.
4. Then if you want, you can go back extensions panel to set up others.
5. Close the Add-on Manager (about:addons) tab.

Can I update the legacy add-ons?

If your add-on is not "compatible with Firefox 57+" which is labeled as Legacy in the Add-ons Manager tab, you can not update it, starting in Firefox version 57 (will be released in November 2017).

After legacy add-ons migrated to WebExtensions by own developers, they will be re-enabled to use and update - see Firefox add-on technology is modernizing.