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Description
Limit viewing time for specific YouTube content **Three Operating Modes** - **Timer Mode** — Pure time management, no content filtering. - *Daily sub-mode:* a global time quota. Once exhausted, immediate redirection. - *Session sub-mode:* work/rest cycles. Configure number of sessions, duration and break time. YouTube is blocked during breaks and after the last session. - **Keywords Mode** — Content-based filtering using video titles and descriptions, with accent- and case-insensitive matching. - *Global sub-mode:* a single shared timer for all keywords. - *Individual sub-mode:* a dedicated timer per keyword, with progress bar and remaining time on hover. - **Mix Mode** — Combines a daily timer (absolute ceiling) with individual keyword timers. Without a detected keyword, only the daily timer counts down. With a keyword, both timers count down in parallel. **Time Management** - Time only counts while a video is actively playing. Paused video = paused timer. - Time keeps counting in background tabs or when the browser is minimized, as long as a video is playing. - Anti multi-tab stacking: 1 real second = 1 counted second, regardless of how many videos are open. - Configurable reset time (midnight by default), applied to all modes. - Optional allowed-hours window (e.g. 08:00 → 21:00): outside these hours, YouTube is fully blocked in every mode, with a dedicated message. Overnight ranges (e.g. 21:00 → 08:00) are supported. - Real-time counter always visible, adapted to the active mode. - Supports regular videos, Shorts, minimized player and embedded players on third-party sites. - Configurable redirect URL in administration settings. **Import / Export** - Export keyword lists to JSON (global and individual keywords with their timers). - Import from JSON with smart merge that preserves already consumed time. - Available in Keywords and Mix modes. - Full configuration export / import from the Settings section (modes, limits, keywords, redirect URL, reset time, allowed hours, language). The password and daily counters are never included. Import replaces the current configuration after confirmation. **Security and Parental Control** - Password protection for all settings (stored securely as a SHA-256 hash, never in plain text). - Modify or remove password (leave field empty to disable). - ON/OFF button also password protected. - 100% local data — nothing is sent to external servers. **User Interface** - Clean, modern and compact design with collapsible sections. - Dynamic remaining time display adapted to the active mode. - Remaining time of the main timer shown directly on the toolbar icon, turning red under 5 minutes. Grayed-out icon when the extension is OFF. - Sensitive actions (counter reset, configuration import) require a confirmation click. - Individual keywords are collapsible: name visible, details on click. - Multilingual: *EN*, *FR*, *DE*, *IT*, *ES*, *JA*, *PL*, *SV*. - Choose the interface language manually, or let it follow your browser automatically. - Help link to [full documentation](https://www.acem-tech.uk/en).