Version 1.10:
- filter-aware update confirm, exact-fit modal height with no false scrollbar, dynamic header with filtered count (EN/RU), shortened "Update checked" button text
- add a smaller yellow rutor.info search button to the left of the episode Download button (hammer-and-sickle site logo)
- click opens rutor search for the Russian series name from .pgs-sinfo-title (strip Сериал, take the part before /)
- add a smaller green Fast-Torrent search button to the left of the rutor.info button (site favicon)
- click opens Fast-Torrent search for the same Russian series name (/search/{query}/1.html)
- store an added timestamp when a series is first favorited (not on season/link updates)
- include added in the favorites JSON export; keep it through import and season recheck
- add a sortable Added column in the favorites modal (legacy items without a date sort as oldest)
- fix favorites export download via background downloads API (Firefox saveAs user-activation)
- hide the Id (#) column in the favorites modal
- allow inline add/edit of Added dates in the favorites modal (validate; save on blur/close; invalid stays red and is not saved)
- default favorites modal sort: newest added first (legacy/no date at the bottom)
- fix export download on Firefox: use blob URL (data: URLs are denied by downloads API)

Version 1.9:
- restore Save As dialog for episode download (bottom-right Download button): pick the folder instead of saving silently to Downloads
- call downloads.download({ saveAs: true }) immediately from the background message handler (return a Promise, no async IIFE) so Firefox keeps user activation and the picker actually opens

Version 1.8:
- fix Firefox manifest warnings
- fix video download not starting
- fix download button not appearing on fresh installs due to an extStatus init race
- download saved file with a clean name: strip meaningless leading prefix (7f_/7e_ …) before the series name

Version 1.7:
- add native ads blocker feature, ads menu toggle option in popup window blocks video ads on seasonvar.ru
- extension now starts in active state on first install (auto-enabled)
- menu options better naming
- add EN/RU i18n with popup language toggle (default EN); see I18N_FEATURE.md
- fix quick-go button (bottom arrow on the right of favorite series) positioning — recovered navigation between marked series, add visible background
- add search bar to favorites modal (filter by name or season id)
- fix sortable column tooltips to show correct column name
- increase popup width from 160px to 300px (RU locale overflow)

Version 1.6:
- add video download feature for currently selected episode - download button appears to the bottom right corner of the page