syspass v1.6.8
Will look for login/password fields and add a drop down on focus if matching accounts are found in sysPass. After click on suggested item password will be retrieved and fills out the form.
In sysPass go to `User and Accesses -> Api Authorizations` and add permissions for
* "Search for Accounts"
* "View password"
Both have to have the same password
In Firefox go to the Addons page (cmd+shift+A / `about:addons`) and edit sysPass Addon settings. Add URL (https required), API token and API password.