Version 1.1.0

New:
- Monitoring now requires a one-time purchase. Click the
toolbar icon to buy, or to restore a previous purchase.
If you already bought this extension for Chrome, use the
"already paid?" link with the same email — one purchase
covers both browsers.
- New listings are now detected as they appear, without
waiting for the page to reload.

Fixed:
- Listings from "recommended" and "recently viewed" strips
could be mistaken for search results, causing alerts
unrelated to new listings. Only the results grid is
watched now.
- Switching between two searches triggered a false alert,
because seen listings were tracked in one shared list.
Each search now keeps its own history.
- Changing searches without reloading the page left the
extension watching the previous search.
- Multiple monitored tabs are now all refreshed, not just
the first one found.
- Reduced background CPU use on Mercari pages.
- The extension no longer runs on searches sorted by
anything other than "Newest," where the comparison it
makes isn't meaningful.

Requires Firefox 140 or later.