| Edit Cookies | | - | | |
| Empty Cache Button | | - | | |
| Encrypted Communication | | - | | |
| Eraser | | - | | |
| ExExceptions | | - | | |
| Exceptions Exporter | | - | | |
| Export Cookies | | - | | |
| Fake Windows Version for Useragent | | - | | |
| Fingerfox | | - | | |
| Fingerfox (SE) | | - | | |
| FireCrypt | | - | | |
| FireGloves | | - | | |
| Firecookie | | - | | |
| Firefox Interest Dashboard | | - | | |
| First Party Isolation | | - | | |
| Force AutoComplete Extension | | - | | |
| Forget that page | | - | | |
| Form History Control | | - | | |
| Fox Web Security | | - | | |
| FoxBleed | | - | | |
| FoxFilter | | - | | |
| FoxyPermissions | | - | | |
| GNU LibreJS | | - | | |
| Ghostery | | - | | |
| Google Analytics Opt-out Browser Add-on | | - | | |
| Google Disconnect | | - | | |
| Google Privacy | | - | | |
| HTML Content Blocker | | - | | |
| HTTP Content Security Policy Detector | | - | | |
| HTTP Header Mangler | | - | | |
| HTTP Logout | | - | | |
| HTTP UserAgent cleaner | | - | | |
| Happy Bonobo： Clear Screen Identifiers | | - | | |
| Happy Bonobo： Useragent Entropy | | - | | |
| HeaderControlRevived | | - | | |
| Heartbleed | | - | | |
| Heartbleed Monitor | | - | | |
| Heartbleed Notifier | | - | | |
| Heartbleed-Ext | | - | | |
| Historia | | - | | |
| Historify | | - | | |
| History AutoDelete | | - | | |
| History Cleaner | | - | | |
| History Deleter | | - | | |
| History Janitor | | - | | |
| History Zebra | | - | | |
| History disable button | | - | | |
| HistoryBlock | | - | | |
| Host Permissions | | - | | |
| ILovePrivacy | | - | | |
