Sakura - Custom JS & CSS
User script manager that lets you inject your own JavaScript and CSS into websites matching URL patterns you define.
3 users
Cookie Transfer
Copy session cookies from one site to your active tab with a single click or keyboard shortcut. Perfect for testing staging, localhost, and mirror environments without re-logging in.
3 users
IP-Insight-Extension
IP Insight Extension Easily view your public IP address and the IP addresses of the sites you visit. Clear browsing data such as cache, cookies, history, form data, local storage, and Indexed DB. Includes a dark mode and a PayPal donation button.
3 users
Timestamp Bookmarks - YouTube
Save multiple timestamps per video with labels. Perfect for students, researchers & anyone watching long videos. Never lose your place!
3 users
MonsterDealz Deal-Alarm
Sofort Bescheid bei neuen Deals auf MonsterDealz.de – direkt im Firefox. Mit Kategorie- und Keyword-Filter, Ruhezeiten und Badge-Zähler. Komplett lokal, ohne Tracking, ohne Konto.
3 users
ChartMaker Pro
Generate beautiful charts from CSV, Excel, TSV & TXT files instantly and completely offline
3 users
DevToys New Tab
DevToys New Tab for Firefox: 80+ tools — JSON, Base64, hash, UUID, JWT, formatters, converters, network & images. Offline. Search uses your default engine. GA4 usage analytics; tool inputs stay local.
3 users
