Highlights — keep passages while you read

Select text and use the context menu or Alt+Shift+H. No popup opens and nothing is sent; the toolbar badge counts what is waiting.
Highlights stay on your device until the next time you open the popup, which is when they are written to Notion.
Pick where they go in Settings: a database gets one row per passage, or an existing page gets them appended as quotes, grouped by source.
The same passage saved twice — including from two different links to one article — is stored once.
The library lives at the bottom of the popup, where you can read or delete anything still waiting.
Better extraction

Tables, strikethrough and task lists now arrive as real Markdown.
Images resolve through the lazy-loading data- attributes most sites hide them in, rather than the placeholder left in src.
Sign-in

Works on Firefox for Android, which ships no identity API, through a callback page on slipclip.todorx.dev.
Requirements changed

Now Firefox 140 or later; the extension was rebuilt on a Manifest V3 service worker. Firefox for Android needs 142 or later.