Installing the Add-on
Click Continue to Installation when you see a window like this.
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.
Get 1Password beta for Firefox
DownloadClick Add to install 1Password when Firefox gives you this prompt
Firefox will inform you the add-on was installed successfully, and the 1Password icon will now appear in Firefox’s toolbar.
Learn the basics of 1Password beta in your browser
Save a password
1Password can save your passwords when you sign in to websites, so you don’t have to remember them.
Sign in with 1Password
After you’ve saved a password for a site, 1Password can fill in your username and password for you.