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Product facts and screenshots

Original captures, descriptions and store links for both extensions. Download a kit or open the images below at their original size.

LyricLayer

Lyrics for YouTube songs without lyric captions

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LyricLayer looks up lyrics from LRCLIB, NetEase and optional Kugou, even when a YouTube video has no lyric captions. Follow matching timed lyrics inside the player or in a floating window. Choose a recording, adjust the delay, repair line timing and loop a verse to practise. Free for Chrome and Edge, with no account or ads. Availability and timing vary by song and source.

Price: Free
Browsers: Desktop Chrome and Edge
Source: Proprietary. The public GitHub repository contains policy and support information, not extension source code.

Reviewer kit: screenshots, walkthroughs and test steps. Includes six review checks, a blank results sheet and source notes. Walkthroughs use saved screenshots; they are not live-use recordings.

Original screenshots and facts ZIP Product page Setup guide Chrome store Edge store Privacy policy

**Lyrics on YouTube**Captured on an actual YouTube page. Recording availability and timing vary.Download PNG

**Floating lyric controls**Actual extension interface in a development preview, with sample lyrics visibly labelled.Download PNG

**Timing controls**Actual extension interface in a development preview, with sample lyrics visibly labelled.Download PNG

Twitch Snooze

Hide Twitch channels without unfollowing

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Take a break from Twitch channels without unfollowing. Choose Today, 24 hours, 3 days, 1 week, 2 weeks or 1 month, and channels return when their snooze expires. Hide categories, keep favourites visible with a whitelist, and manage rules in Hidden Content. Rules stay in your browser profile. Free for Chrome and Edge, with no tracking server or external API calls. Full source is public under the MIT license.

Price: Free
Browsers: Desktop Chrome and Edge
Source: MIT License. Full extension source is public.

Reviewer kit: screenshots, walkthroughs and test steps. Includes six review checks, a blank results sheet and source notes. Walkthroughs use saved screenshots; they are not live-use recordings.

Original screenshots and facts ZIP Product page Setup guide Chrome store Edge store Source code Privacy policy

**Snooze a channel**Captured on an actual Twitch sidebar, with the inline snooze menu open.Download PNG

**Manage Hidden Content**Captured on an actual Twitch page. Just Chatting is hidden; other categories remain visible.Download PNG

**Keep favourites visible**Actual extension interface in a development preview, with sample channels visibly labelled.Download PNG

Questions about the products?

support@perfsn.xyz

Interface previews use labelled sample data. The supplied files contain no installers; use the browser store links above.