Browse extensions
Chrome, Firefox, and Edge
World Landmarks Explorer
Discover famous global landmarks, historic monuments, and world heritage sites through engaging interactive trivia challenges.
Ad Skipper Reload NEws
Twitch Ad Skipper Reload automatically refreshes Twitch streams when an ad is detected
Quick oll to Top
Addon cuộn nhanh về đầu trang.
Motion Snacks
Movement breaks, a daily meditation and SOS tools for the hours you spend at the computer.
HealthTrust Medical SEO & Trust Audit
Inspect a medical page's SEO, trust signals, and AI-search visibility on demand.
Header Set
Count unique HTTP header names from a pasted request block.
Website IP Map
See your IP address and the IP address of the website you are visiting on a map.
Host Tally
Count unique hostnames from a pasted list of bookmark URLs.
CV Manager (Dev)
Save job ads to CV Manager in one click, and run your job sources from the search page.
Send to nvALT
Send the page, the selection, or chosen blocks to nvALT as Markdown.
Save Alias
Turn a messy download name into a unique, date-stamped alias.
TabTome
Turn open pages or pasted text into an EPUB and send it to Kindle or PocketBook from Windows.
SEO Quick Helper
Công cụ hỗ trợ SEO nhanh trên Firefox: xem tiêu đề, meta description, URL và copy thông tin trang.
Site Scope
Count site: operators in a search query so scoped hosts stay visible.
Slug Clash
Find bookmark titles that collapse into the same lowercase hyphen slug.
Reading 1 Estimator
Ước lượng thời gian đọc của trang và hiển thị một badge nhỏ trên màn hình.
Shirahoshi important
No description
Shirahoshi danger
No description
Spec Triple
Compute CSS selector specificity as an (id, class, type) triple.
Tag Drift
List bookmark tags that appear only once in a comma-separated paste.
Tip Trio
Show 10, 15, and 18 percent tip amounts for a restaurant bill.
Title Slack
Show leftover characters when a feed headline is measured against a CMS cap.
Thread Split
Count how many 280-character posts a long social draft would need.
Type Ladder
Build a four-step modular type scale from a base size and a ratio.
Utm Peel
Count tracking query keys such as utm and click identifiers on a URL.
Vat Gross
Add a value-added tax percent onto a net price and show the gross total.
Warm Tabs
Estimate RAM megabytes from an open-tab count using a flat per-tab budget.
Width Mix
Count fullwidth versus halfwidth characters in a mixed East Asian line.
WeChat UA for Chaoxing
将 Firefox 伪装成微信内置浏览器：对 *.chaoxing.com 与 whatismyuseragent.com 的全部网络请求，自动把 User-Agent 和 X-Requested-With 替换为微信客户端标识。
YO+ for Abitreenit
Improve Yle Abitreenit with better navigation, local drafts, study tools, and practice session features.
Explore by task
All collections- Ad blockers
Compare extensions that remove advertising from web pages, with links to their permissions and security findings.
- VPN and proxy extensions
Explore browser extensions with VPN or proxy connection features, then compare their access and published security reports.
- Password managers
Find extensions with password-vault features and review the permissions and security evidence behind each listing.
- Developer tools
Discover extensions for inspecting pages, working with API requests and testing websites, alongside their security reports.
- Reading and accessibility
Explore text-to-speech, reader-view and reading-aid extensions, with direct links to their permissions and security reports.