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