Tor Browser 5.0.4/5.5a4 发布，5.0.4 更新如下：
All Platforms
Bug 9263: Spoof Referer when leaving a .onion domain
Bug 16735: about:tor should accommodate different fonts/font sizes
Bug 16937: Don't translate the homepage/spellchecker dictionary string
Bug 17164: Don't show text-select cursor on circuit display
Bug 17351: Remove unused code
Translation updates
Update Firefox to 38.4.0esr
Update NoScript to 2.6.9.39
Update Torbutton to 1.9.3.5
Bug 16937: Remove the en-US dictionary from non en-US Tor Browser bundles
Bug 17318: Remove dead ScrambleSuit bridge
Bug 17473: Update meek-amazon fingerprint
Bug 16983: Isolate favicon requests caused by the tab list dropdown
Bug 17102: Don't crash while opening a second Tor Browser
Windows
Bug 16906: Don't depend on Windows crypto DLLs
Linux
Bug 17329: Ensure that non-ASCII characters can be typed (fixup of #5926)
详见：https://blog.torproject.org/blog/tor-browser-504-released
5.5a4 更新如下：
All Platforms
Bug 9263: Spoof Referer when leaving a .onion domain
Bug 16620: Remove old window.name handling code
Bug 17164: Don't show text-select cursor on circuit display
Bug 17351: Remove unused code
Translation updates
Update Firefox to 38.4.0esr
Update Tor to 0.2.7.4-rc
Update NoScript to 2.6.9.39
Update HTTPS-Everywhere to 5.1.1
Update Torbutton to 1.9.4.1
Bug 17207: Hide MIME types and plugins from websites
Bug 16909+17383: Adapt to HTTPS-Everywhere build changes
Bug 16620: Move window.name handling into a Firefox patch
Bug 17220: Support math symbols in font whitelist
Bug 10599+17305: Include updater and build patches needed for hardened builds
Bug 17318: Remove dead ScrambleSuit bridge
Bug 17428: Remove default Flashproxy bridges
Bug 17473: Update meek-amazon fingerprint
Windows
Bug 17250: Add localized font names to font whitelist
OS X
Bug 17122: Rename Japanese OS X bundle
Linux
Bug 17329: Ensure that non-ASCII characters can be typed (fixup of #5926)
详见：https://blog.torproject.org/blog/tor-browser-55a4-released
Tor Browser Bundle 是一个基于 Firefox ESR (Firefox with extended support) 的 Web 浏览器，默认配置通过 Tor 和 Vidalia 实现了个人隐私保护和匿名。该版本包括三个扩展：Torbutton, NoScript and HTTPS-Everywhere.
来自:开源中国社区
