・SNS
Control Panel for Twitter
https://addons.mozilla.org/ja/firefox/addon/control-panel-for-twitter/

・Utility
Add custom search engine
https://addons.mozilla.org/ja/firefox/addon/add-custom-search-engine/
Search by Image
https://addons.mozilla.org/ja/firefox/addon/user-agent-string-switcher/
User-Agent Switcher and Manager
https://addons.mozilla.org/ja/firefox/addon/user-agent-string-switcher/
Absolute Enable Right Click & Copy
https://addons.mozilla.org/ja/firefox/addon/absolute-enable-right-click/
Dark Reader
https://addons.mozilla.org/ja/firefox/addon/darkreader/
Dark Background and Light Text
https://addons.mozilla.org/ja/firefox/addon/dark-background-light-text/
Flagfox
https://addons.mozilla.org/ja/firefox/addon/flagfox/
LibRedirect
https://addons.mozilla.org/ja/firefox/addon/libredirect/

・UserScript Manager
Tampermonkey
https://addons.mozilla.org/ja/firefox/addon/tampermonkey/
tampermonkey-backup-firefox-2024-03-17T04-16-46-546Z.zip (1 MB)
https://www.mediafire.com/file/8d7vskl52dnbbjb/