{"id":3071606,"authors":[{"id":20144278,"name":"Eric","url":"https://addons.mozilla.org/en-US/firefox/user/20144278/","username":"anonymous-f58af406748ee99ed545579c3619596f","picture_url":null}],"average_daily_users":50,"categories":["language-support","photos-music-videos"],"contributions_url":"","created":"2026-09-13T20:13:08Z","current_version":{"id":6512996,"compatibility":{"firefox":{"min":"128.0","max":"*"}},"edit_url":"https://addons.mozilla.org/en-US/developers/addon/local-live-captions/versions/6512996","file":{"id":5057147,"created":"2026-09-25T02:23:34Z","hash":"sha256:e3ab12aa492f7d835364b617db0e17a5cd1bd599d7a49ecd0ceb5b477b21a7d7","is_mozilla_signed_extension":false,"size":5459561,"status":"public","url":"https://addons.mozilla.org/firefox/downloads/file/5057147/local_live_captions-1.4.3.xpi","permissions":["storage","tabs","<all_urls>"],"optional_permissions":["downloads"],"host_permissions":["https://huggingface.co/*","https://cdn-lfs.huggingface.co/*","https://cdn-lfs-us-1.huggingface.co/*"],"data_collection_permissions":["none"],"optional_data_collection_permissions":[]},"is_strict_compatibility_enabled":false,"license":{"id":22,"is_custom":false,"name":{"en-US":"MIT License"},"slug":"MIT","url":"https://spdx.org/licenses/MIT.html"},"release_notes":{"en-US":"New icon — a sound wave above the caption line it becomes — drawn separately for the 16 px\ntoolbar size so it stays sharp there.","zh-CN":"新图标：一段声波，下面是它变成的那行字幕。16px 工具栏尺寸单独按像素对齐绘制，工具栏上也清晰。"},"reviewed":"2026-09-25T02:26:19Z","version":"1.4.3"},"default_locale":"en-CA","description":{"en-CA":"Local Live Captions puts a caption panel over whatever is playing in a tab, the way Chrome's Live Caption does — except the speech recognition runs on your own machine, inside Firefox.\n\n• Captions appear on their own as soon as a tab starts playing audio\n• Everything is local: after a one-time 27 MB model download the add-on works offline, and your audio is never uploaded\n• Works with ordinary video and audio players, with sites that play through the Web Audio API, and with radio and news players that other capture methods only hear as silence\n• Light on the CPU: the default Moonshine model updates the caption line in about a third of a second\n• Drag the panel anywhere, resize it, change the text size, pick dark or light\n• Optional, off by default: keep a transcript of each tab and save it as a text file\n• Whisper models for other languages, including translation into English; WebGPU where your Firefox supports it\n• A microphone source for calls or anything Firefox cannot capture, and an optional OpenAI-compatible transcription server\n• \"Use recommended settings\" restores the fastest, most dependable setup in one click\n\nKeyboard shortcut: Ctrl+Shift+L (Cmd+Shift+L on macOS) toggles captions for the current tab.\n\nFirefox asks you to grant site access before the add-on can read a page's audio.\n\nKnown limits: DRM-protected video cannot be captured, nor can a stream whose server refuses cross-origin access (microphone mode still works there); captions lag by about the length of the phrase being spoken.","zh-CN":"Local Live Captions 会在正在播放的标签页上叠加一个字幕面板，就像 Chrome 的 Live Caption 那样——区别是语音识别完全在你自己的电脑上、在 Firefox 内部完成。\n\n• 标签页一开始出声，字幕自动出现\n• 全部本地：模型一次性下载 27 MB 之后即可离线使用，音频从不上传\n• 支持普通的视频、音频播放器，用 Web Audio 播放的网站，以及其他捕获方式只能听到静音的电台、新闻播放器\n• 占用 CPU 少：默认的 Moonshine 模型约三分之一秒就能刷新一次字幕\n• 面板可拖动、可缩放、可调字号，深浅两种配色\n• 可选（默认关闭）：保留每个标签页的字幕记录，并保存为文本文件\n• 需要其他语言时可用 Whisper 模型，也能翻译成英文；支持 WebGPU 的 Firefox 可以开启 WebGPU\n• 麦克风输入可用于通话或 Firefox 抓不到音频的场合；也可以改用你自己的 OpenAI 兼容转写服务\n• 「Use recommended settings」一键恢复最快、最稳定的设置\n\n快捷键：Ctrl+Shift+L（macOS 为 Cmd+Shift+L）开关当前标签页的字幕。\n\nFirefox 会要求你授予站点访问权限后，插件才能读取页面音频。\n\n已知限制：DRM 加密的视频无法捕获；服务器拒绝跨域访问的音频流也无法捕获（这种情况可以用麦克风模式）；字幕延迟大致等于当前这句话的长度。"},"developer_comments":null,"edit_url":"https://addons.mozilla.org/en-US/developers/addon/local-live-captions/edit","guid":"live-caption@ericzhou866","has_eula":false,"has_privacy_policy":true,"homepage":{"url":{"en-CA":"https://github.com/EricZhou866/LiveCaption"},"outgoing":{"en-CA":"https://prod.outgoing.prod.webservices.mozgcp.net/v1/b4a75fac08609482c17f3a7ea291badeea27a21f5d21f2a5c21df9cec9f147b5/https%3A//github.com/EricZhou866/LiveCaption"}},"icon_url":"https://addons.mozilla.org/user-media/addon_icons/3071/3071606-64.png?modified=ea5babf1","icons":{"32":"https://addons.mozilla.org/user-media/addon_icons/3071/3071606-32.png?modified=ea5babf1","64":"https://addons.mozilla.org/user-media/addon_icons/3071/3071606-64.png?modified=ea5babf1","128":"https://addons.mozilla.org/user-media/addon_icons/3071/3071606-128.png?modified=ea5babf1"},"is_disabled":false,"is_experimental":false,"is_noindexed":false,"last_updated":"2026-09-25T02:26:19Z","name":{"en-CA":"Local Live Captions"},"previews":[],"promoted":[],"ratings":{"average":0.0,"bayesian_average":0.0,"count":0,"text_count":0},"ratings_url":"https://addons.mozilla.org/en-US/firefox/addon/local-live-captions/reviews/","requires_payment":false,"review_url":"https://addons.mozilla.org/en-US/reviewers/review/3071606","slug":"local-live-captions","status":"public","summary":{"en-CA":"Live English captions for any audio or video in a tab — video, podcasts, radio, meetings. Speech recognition runs locally in your browser; your audio never leaves your computer.","zh-CN":"给标签页里的任何声音加英文实时字幕——视频、播客、电台、会议。语音识别在你的浏览器里本地完成，音频不会离开你的电脑。"},"support_email":{"en-CA":"EricZhou866@gmail.com"},"support_url":{"url":{"en-CA":"https://github.com/EricZhou866/LiveCaption"},"outgoing":{"en-CA":"https://prod.outgoing.prod.webservices.mozgcp.net/v1/b4a75fac08609482c17f3a7ea291badeea27a21f5d21f2a5c21df9cec9f147b5/https%3A//github.com/EricZhou866/LiveCaption"}},"tags":[],"type":"extension","url":"https://addons.mozilla.org/en-US/firefox/addon/local-live-captions/","versions_url":"https://addons.mozilla.org/en-US/firefox/addon/local-live-captions/versions/","weekly_downloads":144}