Forget Me Not - Forget cookies & other data v2.2.8 
News
Version 2.0 has just been released with new features, a new UI and over 335 unit tests to ensure good quality and correct behavior.
Privacy Statement
Your privacy is of the utmost importance.
This extension does not analyze or collect anything beyond what it needs to fulfill its duty. It does not send any data anywhere not even anonymously. PERIOD.
Newcomers:
Some settings are disabled by default to avoid accidental deletion. Start by clicking on the toolbar icon, create rules and activate the settings you need. Click on the help icons/links if you need more information.
Features
This web-extension deletes data websites store in the browser in the following situations:
- When all instances of a website have been left:
- Cookies
- Local-Storage (Firefox 58+ only)
- History & Downloads
- This can be delayed in seconds
- Different cleanup types can be applied (see the help page within the add-on for a more detailed description)
- Never: No cleaning.
- On Startup: Clean only on browser start.
- On Leave: Clean on domain leave and on browser start.
- Instantly: Prevent data from being set, if possible. Otherwise behave like On Leave.
- When the browser starts:
- Cookies (optionally only when not whitelisted)
- Local Storage (optionally only when not whitelisted on Firefox 58+)
- History
- Downloads
- Form Data
- Passwords
- Indexed DB
- Plugin Data
- Service Workers
- Server Bound Certificates
- Cache
- Delete thirdparty cookies on creation
- When a cookie is set without belonging to a domain that is open in a tab, it is considered a thirdparty cookie.
- This can be delayed in seconds
- Rules still apply
- Manually clean the above
Icon Credits
Myosotis flower cartoon 1 | Designed by Vexels.com
Bugs & Feature Requests
If you encounter any bugs, please report them on GitHub. Feature requests are also very welcome.