firefox 102 (beta) release notes 翻譯共筆 [已完成]
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###### tags: `moztw.org`, `fx_release_notes`

1. 複製 mozilla.org 上 [最新版 release notes](https://www.mozilla.org/en-US/firefox/101.0/releasenotes/) 的內容
2. 透過 [html to markdown](https://codebeautify.org/html-to-markdown) 轉成 md 格式
3. 貼到 [hackmd](hackmd.io/@moztw) 開一個新版共筆（slug: `firefox-release-notes-xxx`）
5. 翻譯完成後，[建立新的 release notes 網頁](https://github.com/moztw/www.moztw.org/tree/master/firefox/releases)

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翻譯時請直接寫在英文下方，便於對照

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https://www.mozilla.org/en-US/firefox/102.0beta/releasenotes/

102.0beta
Firefox Beta

New

- Improved PDF reading in high contrast mode

- On Linux, Firefox will use Geoclue if available on the system for geolocation.

- Subtitles and captions for Picture-in-Picture are now available at HBO Max, Funimation, Dailymotion, Tubi, Disney+ Hotstar, and SonyLIV.

Changed

- There is now an enterprise policy (StartDownloadsInTempDirectory) and an about:config pref (browser.download.start_downloads_in_tmp_dir) that will once again cause Firefox to initially put downloads in (a subfolder of) the OS temp folder, instead of the download folder configured in Firefox. Files opened from the "what should Firefox do with this file" dialog, or set to open in helper applications automatically, will stay in this folder. Files saved (not opened as previously mentioned) will still end up in the Firefox download folder.

Developer

- [Developer Information](https://developer.mozilla.org/docs/Mozilla/Firefox/Releases/102)

- You can now filter style sheets in the Style Editor tab of our developer tools

Web Platform

- We now support the Content-Security-Policy (CSP) directive 'wasm-unsafe-eval'. This means existing web pages that have strict CSP might now block WebAssembly from executing.

- [TransformStreams](https://developer.mozilla.org/en-US/docs/Web/API/TransformStream) has landed, allowing you to pipe from a ReadableStream to a WritableStream, executing a transformation on chunks