Note: This legacy browser extension is not compatible with Firefox 40 or later. More info here.

Downloading Firefox Extension…

Your Firefox extension will download automatically. If it doesn't, please click here or try these alternate locations:

If you see a window like this, click Allow.


If Firefox downloads the file instead, choose to open it with Firefox or open it manually with File > Open File… in the Firefox menu bar.

Once downloaded, Firefox will prompt you to confirm installation as shown below:


Click Install Now to install 1Password. Firefox will confirm by showing this window:


Restart Firefox to complete the installation.


After relaunching, 1Password's button will appear in Firefox's toolbar


Now that you've installed the Firefox extension, learn how to get the most out of your 1Password browsing experience in our 3-Minute Expert Guide.