Add-on sync allows you to easily keep the same set of Firefox add-ons on all of your devices. When enabled, add-on sync will install, uninstall, enable or disable add-ons on all Sync-connected devices as you make changes to them. For example, if you install AdBlock Plus on one computer, AdBlock Plus will get installed on your other computers.
Add-on sync only works between similar Firefox installations. For example, if you install an add-on on desktop Firefox, it will only sync to other desktops, not to your Android device running Firefox.
Turning on add-on sync
If you haven't set up a Sync account yet, add-on sync will be turned on when you create your account (see How do I set up Firefox Sync?). If you already have a Sync account, you can enable (or check the status of) add-on sync by following these simple steps on all the devices that have add-ons that you want to sync.
These instructions are for desktop Firefox.
Click the menu button and choose . .
- Select the panel.
- In the Sync My section, check the check box next to Add-ons.
Click to close the Options window.Click to close the Preferences window.Close the Preferences window. Close the about:preferences page.
Which add-ons will be synced?
If you install add-ons directly from https://addons.mozilla.org, your add-ons should always sync. Add-ons installed from other sites or installed by other programs (your security software, for example) will not be synchronized.
For more technical information, see Add-on Sync on Mozilla's wiki.
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