--- title: "Undertone 弦外：刷剧学外语的全能双语字幕工具 – Chrome extension stats, history and permissions" description: "393 users, rated 5.00 by 1 person. Version 1.3.1, updated 2026-11-05. Requests 6 permissions." url: "https://extensiontracker.com/extension/baeckicjpfmgblnpnkdpfgbejobaeebe" --- # Undertone 弦外：刷剧学外语的全能双语字幕工具 Live in the Chrome Web Store. - Users: 393 - Rating: 5.00 from 1 rating - Last checked: 2026-11-06 05:33 UTC - Users gained in 7 days: +175 - Users gained in 30 days: – (needs a month of history) - Rank by users: #38,030 of 289,025 live extensions - Rank in Education: #1,170 of 12,698 ## The listing What the Chrome Web Store shows, as of the last check. Summary from the listing: > 汉字太好懂，日语字幕看得懂、一关就听不懂？字幕先给读音，说到才亮汉字；口语缩略、语气、言外之意一眼看懂，没听清就逐句复读。日语功能最全，英语、韩语等 11 种外语也能看双语字幕；可在 Netflix、YouTube 上使用。 - Extension ID: `baeckicjpfmgblnpnkdpfgbejobaeebe` - Developer: [MKMMK](https://extensiontracker.com/developer/ud648999d2a7494e804a2119d7582801e) - Enhanced Safe Browsing: Not trusted ([what this means](https://extensiontracker.com/enhanced-safe-browsing)) - Category: [Productivity › Education](https://extensiontracker.com/category/productivity/education) - First published: 2026-10-14 - Last updated: 2026-11-05 - Version: `1.3.1` - Size: 32.28 MiB - Minimum Chrome: 116 - Languages (2): 中文（中国）, 中文（台灣） - Website: `https://undertone.day/` - Support page: `https://undertone.day/privacy/#contact` - Chrome Web Store: - View its code or download CRX: - Search Google for the ID: ## Users over time One row per check, newest first, as shown on the Chrome Web Store. | Checked | Users | Rating | Ratings | | --- | ---: | ---: | ---: | | 2026-11-06 | 393 | 5.00 | 1 | | 2026-11-05 | 379 | 5.00 | 1 | | 2026-11-03 | 370 | 5.00 | 1 | | 2026-10-24 | 218 | – | – | | 2026-10-21 | 3 | – | – | | 2026-10-20 | – | – | – | | 2026-10-16 | 2 | – | – | | 2026-10-15 | – | – | – | ## What changed Every change found on a check, newest first. - 2026-11-06: New version `1.3.1`, replacing `1.3.0`. - 2026-11-05: New version `1.3.0`, replacing `1.2.0`. - 2026-11-05: Renamed from “Undertone 弦外：刷剧学日语的双语字幕” to “Undertone 弦外：刷剧学外语的全能双语字幕工具”. - 2026-11-05: The summary on the listing changed. - 2026-11-03: New version `1.2.0`, replacing `1.1.0`. - 2026-11-03: Renamed from “Undertone 弦外：一个专为中文母语者准备的日语刷剧学习神器” to “Undertone 弦外：刷剧学日语的双语字幕”. - 2026-11-03: Added the permission `scripting`. Removed the permission `identity`. - 2026-11-03: Added the optional site `http://*/*`. Removed the optional site `https://translate.googleapis.com/*`. - 2026-11-03: Now listed in 2 languages, from 1. - 2026-10-24: New version `1.1.0`, replacing `1.0.2`. - 2026-10-24: Renamed from “Undertone 弦外：看视频学外语” to “Undertone 弦外：一个专为中文母语者准备的日语刷剧学习神器”. - 2026-10-24: The developer's contact email changed. - 2026-10-24: The developer's website link changed. - 2026-10-24: The privacy policy link changed. - 2026-10-20: New version `1.0.2`, replacing `1.0.1`. - 2026-10-20: The summary on the listing changed. - 2026-10-20: Added the permissions `alarms`, `identity`. - 2026-10-20: Added the optional sites `http://127.0.0.1/*`, `http://localhost/*`, `https://*/*`, `https://api.deepseek.com/*`, `https://api.openai.com/*` and 1 more. - 2026-10-20: The developer's website link changed. - 2026-10-16: New version `1.0.1`, replacing `1.0.0`. ## Developer history Moves to another publisher account and new contact emails, newest first. - 2026-10-24: The contact email changed. The developer's website link changed. The privacy policy link changed. What it can access changed on 3 Nov 2026. We know contact emails only by a keyed hash, so they're never shown. Recent changes: [Account and contact changes](https://extensiontracker.com/owners/). ## What it can access From the extension's manifest, in plain language. ### Sites - `*://*.netflix.com/*`: netflix.com and its subdomains - `*://*.nflxvideo.net/*`: nflxvideo.net and its subdomains ### Sites where it runs scripts - `*://*.netflix.com/*`: netflix.com and its subdomains - `*://www.youtube.com/*`: www.youtube.com ### Browser features - `alarms`: Run tasks on a schedule - `offscreen`: Open a hidden page for background work - `scripting`: Run scripts on sites it can reach - `storage`: Save settings and data in your browser ### Asked for later, if you agree - `http://*/*`: Every website - `http://127.0.0.1/*`: 127.0.0.1 - `http://localhost/*`: localhost - `https://*/*`: Every website - `https://api.deepseek.com/*`: api.deepseek.com - `https://api.openai.com/*`: api.openai.com ## About this data Collected from the extension's public Chrome Web Store listing. It's checked again 7 and 30 days after it was published, and again whenever a new version appears. Last checked 2026-11-06 05:33 UTC; next check around 2026-11-13. How the data is collected: . ## Cite this page Extension Tracker. “Undertone 弦外：刷剧学外语的全能双语字幕工具” (baeckicjpfmgblnpnkdpfgbejobaeebe). Chrome Web Store data, last checked 2026-11-06. https://extensiontracker.com/extension/baeckicjpfmgblnpnkdpfgbejobaeebe. Accessed 2026-11-08. ```bibtex @misc{extensiontracker_baeckicjpfmgblnpnkdpfgbejobaeebe, title = {Undertone 弦外：刷剧学外语的全能双语字幕工具 (baeckicjpfmgblnpnkdpfgbejobaeebe)}, author = {{Extension Tracker}}, year = {2026}, note = {Chrome Web Store data, last checked 2026-11-06}, url = {https://extensiontracker.com/extension/baeckicjpfmgblnpnkdpfgbejobaeebe}, urldate = {2026-11-08} } ``` --- From Extension Tracker, a public record of the Chrome Web Store: . It isn't affiliated with Google. The data is free to reuse under CC BY 4.0 (), crediting Extension Tracker. Every page except search comes as Markdown too: add `format=md` to the address, as in `https://extensiontracker.com/extension/{id}?format=md`.