NexVid — Browser extension distribution¶

Development line: project:nexvid · thread browser-extension-distribution
Last event: 2026-04-17 · 1 dated since 2026-04-17 · Researched: 2026-09-05 · confidence: medium

What it is¶

NexVid is a browser extension for people who watch anime, cartoons, and web video in Chrome or Firefox. - Anime4K GPU upscaling for real-time video playback. - Quality and FPS profiles to match hardware performance. - Filters and WebGL shaders for image adjustment. - Presets to save shader and filter chains. - Local player for desktop video files.

Processing runs during playback and requires access to data on all websites; v1.1.9 from 2026-08-20 is current. It tunes playback, but does not replace video export with neural upscaling.

Development line¶

• 2026-04-17 — NexVid browser-extension listings appeared for Chrome and Firefox. On 2026-04-17, listings for the NexVid browser extension appeared on the Chrome Web Store and Firefox Add-ons. This step expanded distribution across Chrome and Firefox. The source listings do not state a version, feature set, availability status, or changes made on that date.

What changed¶

• 2025-10-27 — Firefox 1.0.2 became the earliest publicly visible version in AMO history.
• 2025-11-10 — Firefox 1.0.5 added local videos and extra effects.
• 2025-12-01 — Firefox 1.1.0 added dark and minimalist themes, raised the maximum FPS, and fixed Twitch; 1.1.1 on the same day fixed profile selection in the minimal interface.
• 2026-01-20 — Firefox 1.1.2 added a resolution threshold to skip high-quality sources, along with experimental shaders.
• 2026-03-08 — Firefox 1.1.3 added a website whitelist.
• 2026-04-17 — Chrome 1.1.6 was updated; this confirms a Chrome release, not an identical Firefox release on that date.
• 2026-08-20 — Chrome and Firefox offer 1.1.9; current store descriptions list Anime4K, performance profiles, shaders, presets, and a local player.

How to use this¶

From 2026-04-17, practitioners evaluating NexVid should check its browser-extension availability through the Chrome Web Store and Firefox Add-ons, while independently verifying current compatibility and capabilities.

1. Install NexVid from the Chrome Web Store or Firefox Add-ons and open the target web video. — https://chromewebstore.google.com/detail/nexvid-real-time-video-up/hiocbajaikpcckgeagcngaeoioncmbim
2. Select an Anime4K profile and target FPS to match computer performance, then set a resolution threshold to skip high-quality sources. — https://addons.mozilla.org/fr/firefox/addon/nexvid-realtime-video-upscaler/
3. Build a chain of filters and WebGL shaders if needed, then save it as a preset. — https://chromewebstore.google.com/detail/nexvid-real-time-video-up/hiocbajaikpcckgeagcngaeoioncmbim
4. Open local files with the built-in player instead of expecting an export of an upscaled video. — https://addons.mozilla.org/fr/firefox/addon/nexvid-realtime-video-upscaler/

Best practices¶

• Start with anime and cartoons; the author notes them as the best sources. — https://www.reddit.com/r/upscaling/comments/1sl1vy1/i_made_a_browser_extension_that_let_you_upscale/
• Do not raise FPS above the source rate. The slider caps processed frames rather than generating new ones; a limit of 30 FPS on a 60 FPS source can cause dropped frames. — https://www.reddit.com/r/SideProject/comments/1okqhgx/i_made_a_browser_extension_that_let_you_upscale/
• Select a profile for hardware load, then tune filters separately. The author recommends unsharp mask and high-pass for sharpness before saving a preset. — https://www.reddit.com/r/upscaling/comments/1sl1vy1/i_made_a_browser_extension_that_let_you_upscale/
• Check the permission for all-site data access before installing, and restrict the extension to a site whitelist when available. — https://addons.mozilla.org/fr/firefox/addon/nexvid-realtime-video-upscaler/

Superseded by this¶

• 2025-10-31 — Advice that local files cannot open in NexVid is obsolete after local-video support arrived in Firefox 1.0.5 on 2025-11-10.
• 2026-04-17 — Chrome 1.1.6 is obsolete as the recommended version: the current store listing specifies 1.1.9 from 2026-08-20.

Still unknown¶

• Public Firefox version history ends at 1.1.3 on 2026-03-08, while the current listing shows 1.1.9; no changelog between them is available.
• Chrome v1.1.6 and its stats snapshot are confirmed for 2026-04-17, but no primary changelog explains the contents of that update.
• The Chrome store lists location and user activity data collection, while the Firefox listing requires data access for all websites; a comparable permissions breakdown across both platforms is not established.

Sources¶

Agent brief¶

• Subject: project:nexvid, thread browser-extension-distribution, 1 dated events 2026-04-17 → 2026-04-17.
• Practical note: From 2026-04-17, practitioners evaluating NexVid should check its browser-extension availability through the Chrome Web Store and Firefox Add-ons, while independently verifying current compatibility and capabilities.
• Confidence: medium. Dated supersedes above are the authority for what is obsolete.