Update Scanner

Spec sheet

Purpose

Update Scanner monitors web pages for updates, including sites that do not provide Atom or RSS feeds.Read 11 Oct 2026 · addons.mozilla.org

Support

The maker directs users to the project's GitHub and Issues pages to help with the rewrite.Read 11 Oct 2026 · sneakypete81.github.io

License

The listed license is GNU General Public License version 3.0 only.Read 11 Oct 2026 · addons.mozilla.org

API access

NoRead 21 Sep 2026 · addons.mozilla.org

Change display

Detected changes are highlighted automatically.Read 11 Oct 2026 · addons.mozilla.org

Check schedule

Users can select how often each site is scanned.Read 11 Oct 2026 · addons.mozilla.org

Current status

The maker says the extension was rewritten due to Firefox changes and that not all previous features are finished.Read 11 Oct 2026 · sneakypete81.github.io

Languages

The add-on listing describes full international support.Read 11 Oct 2026 · addons.mozilla.org

Minor updates

Users can configure the scanner to ignore minor changes.Read 11 Oct 2026 · sneakypete81.github.io

Notifications

When an update is detected, a notification panel appears, and clicking it shows changes highlighted in yellow.Read 11 Oct 2026 · sneakypete81.github.io

Page list

Users can view updated pages from the toolbar and open a sidebar showing updated items in bold and their latest changes.Read 11 Oct 2026 · sneakypete81.github.io

Permissions

The listing says the add-on requires permission to display notifications, access browser tabs, and access data for all websites.Read 11 Oct 2026 · addons.mozilla.org

Version history

The add-on listing shows version 4.4.0, last updated April 24, 2019.Read 11 Oct 2026 · addons.mozilla.org

Plans and prices

Every Update Scanner plan and price →

Where Specifiction places it

• Browser Automation Tools#51 of 627.0
• Website Accessibility Tools#128 of 1337.0
• Website Monitoring Software#53 of 557.2