| .bak |
Firefox Bookmarks Backup |
| .mab |
Mozilla Address Book |
| .maff |
Mozilla Archive Format File |
| .mfl |
Mozilla FastLoad File |
| .mar |
Mozilla Archive |
| .na2 |
Netscape Address Book File |
| .slt |
Mozilla User Profile Folder |
| .webapp |
Firefox Web App Manifest File |
| .wdseml |
Thunderbird Searchable Email File |
| .xpi |
Cross-platform Installer Package |
| .xul |
XML User Interface Language File |
| .xbl |
Extensible Binding Language File |
| .mon |
Firefox monday bookmark backup file |
| .wed |
Firefox bookmark backup |
| .jsc |
JavaScript configuration |
| .mozeml |
Mozilla Thunderbird mail message |
| .moz-backup |
Mozilla backup |
| .fri |
Firefox bookmark backup |
| .tue |
Mozilla Firefox bookmark backup |
| .shlb |
Mozilla file |
| .jsm |
Firefox JavaScript module |
| .abe |
Application Boundaries Enforcer rules data |
| .puc |
Page Update Checker checker data |
| .mozconfig |
Mozilla Firefox configuration data |