Tor Browser 7.0

What's new in this version:

ALL PLATFORMS:
- Update Firefox to 52.1.2esr
- Update Tor to 0.3.0.7
- Update Torbutton to 1.9.7.3
- Bug 22104: Adjust our content policy whitelist for ff52-esr
- Bug 22457: Allow resources loaded by view-source://
- Bug 21627: Ignore HTTP 304 responses when checking redirects
- Bug 22459: Adapt our use of the nsIContentPolicy to e10s mode
- Bug 21865: Update our JIT preferences in the security slider
- Bug 21747: Make 'New Tor Circuit for this Site' work in ESR52
- Bug 21745: Fix handling of catch-all circuit
- Bug 21547: Fix circuit display under e10s
- Bug 21268: e10s compatibility for New Identity
- Bug 21267: Remove window resize implementation for now
- Bug 21201: Make Torbutton multiprocess compatible

Translations update:
- Update Tor Launcher to 0.2.12.2
- Bug 22283: Linux 7.0a4 broken after update due to unix: lines in torrc
- Bug 20761: Don't ignore additional SocksPorts
- Bug 21920: Don't show locale selection dialog
- Bug 21546: Mark Tor Launcher as multiprocess compatible
- Bug 21264: Add a README file

Translations update:
- Update HTTPS-Everywhere to 5.2.17
- Update NoScript to 5.0.5
- Update Go to 1.8.3 (bug 22398)
- Bug 21962: Fix crash on about:addons page
- Bug 21766: Fix crash when the external application helper dialog is invoked
- Bug 21886: Download is stalled in non-e10s mode
- Bug 21778: Canvas prompt is not shown in Tor Browser based on ESR52
- Bug 21569: Add first-party domain to Permissions key
- Bug 22165: Don't allow collection of local IP addresses
- Bug 13017: Work around audio fingerprinting by disabling the Web Audio API
- Bug 10286: Disable Touch API and add fingerprinting resistance as fallback
- Bug 13612: Disable Social API
- Bug 10283: Disable SpeechSynthesis API
- Bug 22333: Disable WebGL2 API for now
- Bug 21861: Disable additional mDNS code to avoid proxy bypasses
- Bug 21684: Don't expose navigator.AddonManager to content
- Bug 21431: Clean-up system extensions shipped in Firefox 52
- Bug 22320: Use preference name 'referer.hideOnionSource' everywhere
- Bug 16285: Don't ship ClearKey EME system and update EME preferences
- Bug 21675: Spoof window.navigator.hardwareConcurrency
- Bug 21792: Suppress MediaError.message
- Bug 16337: Round times exposed by Animation API to nearest 100ms
- Bug 21972: about:support is partially broken
- Bug 21726: Keep Graphite support disabled
- Bug 21323: Enable Mixed Content Blocking
- Bug 21685: Disable remote new tab pages
- Bug 21790: Disable captive portal detection
- Bug 21686: Disable Microsoft Family Safety support
- Bug 22073: Make sure Mozilla's experiments are disabled
- Bug 21683: Disable newly added Safebrowsing capabilities
- Bug 22071: Disable Kinto-based blocklist update mechanism
- Bug 22415: Fix format error in our pipeline patch
- Bug 22072: Hide TLS error reporting checkbox
- Bug 20761: Don't ignore additional SocksPorts
- Bug 21862: Rip out potentially unsafe Rust code
- Bug 16485: Improve about:cache page
- Bug 22462: Backport of patch for bug 1329521 to fix assertion failure
- Bug 21340: Identify and backport new patches from Firefox
- Bug 22153: Fix broken feeds on higher security levels
- Bug 22025: Fix broken certificate error pages on higher security levels
- Bug 21887: Fix broken error pages on higher security levels
- Bug 22458: Fix broken `about:cache` page on higher security levels
- Bug 21876: Enable e10s by default on all supported platforms
- Bug 21876: Always use esr policies for e10s
- Bug 20905: Fix resizing issues after moving to a direct Firefox patch
- Bug 21875: Modal dialogs are maximized in ESR52 nightly builds
- Bug 21885: SVG is not disabled in Tor Browser based on ESR52
- Bug 17334: Hide Referer when leaving a .onion domain (improved patch)
- Bug 18531: Uncaught exception when opening ip-check.info
- Bug 18574: Uncaught exception when clicking items in Library
- Bug 22327: Isolate Page Info media previews to first party domain
- Bug 22452: Isolate tab list menuitem favicons to first party domain
- Bug 15555: View-source requests are not isolated by first party domain
- Bug 3246: Double-key cookies
- Bug 8842: Fix XML parsing error
- Bug 5293: Neuter fingerprinting with Battery API
- Bug 16886: 16886: "Add-on compatibility check dialog" contains Firefox logo
- Bug 19645: TBB zooms text when resizing browser window
- Bug 19192: Untrust Blue Coat CA
- Bug 19955: Avoid confusing warning that favicon load request got cancelled
- Bug 20005: Backport fixes for memory leaks investigation
- Bug 20755: ltn.com.tw is broken in Tor Browser
- Bug 21896: Commenting on website is broken due to CAPTCHA not being displayed
- Bug 20680: Rebase Tor Browser patches to 52 ESR
- Bug 22429: Add IPv6 address for Lisbeth:443 obfs4 bridge
- Bug 22468: Add default obfs4 bridges frosty and dragon

Windows:
- Bug 22419: Prevent access to file://
- Bug 12426: Make use of HeapEnableTerminationOnCorruption
- Bug 19316: Make sure our Windows updates can deal with the SSE2 requirement
- Bug 21868: Fix build bustage with FIREFOX_52_0_2esr_RELEASE for Windows

BUILD SYSTEM:
Windows:
- Bug 21837: Fix reproducibility of accessibility code for Windows
- Bug 21240: Create patches to fix mingw-w64 compilation of Firefox ESR 52
- Bug 21904: Bump mingw-w64 commit to help with sandbox compilation
- Bug 18831: Use own Yasm for Firefox cross-compilation