This release covers changes since the last Firefox release (4.0.14).

Version 4.0.18
- Reading Tools now appear by default on new installs and start with maximum hint coverage, so reading help is available without extra setup.
- Settings search now matches full phrases and recognizes common controls such as "API key", "target language", "floating launcher", and "secure backup".
- Firefox packaging improvements: the production build now passes Mozilla's validator with zero warnings.

Version 4.0.17
- Fixed: Reading Tools controls stay open and clickable when the expanded menu overlaps page content; the menu no longer switches to a nearby section.

Version 4.0.16
- Reading Lens now covers each visual paragraph in a selected section, even when a page groups several paragraphs inside one DOM container, and keeps highlights aligned with the original page text.

Version 4.0.15
- Smart Read no longer caps coverage at six hints on long documents rendered in a single DOM block; visual paragraph boundaries are preserved.
- Escape now closes an open hint detail first, restores focus to its source highlight, then dismisses the Reading Lens and removes hints without ending the session too early.