Bug 1446904 - Do not generate drag gestures from synthesized/mouse events while in touch drag mode. r=kats,smaug Calling GenerateDragGesture at this point should not be necessary, since eTouchMove events are already handled in the same function. This code is intermittently triggered through (what I can only call "rogue") eMouseMove, ePointerDown and ePointerMove events, which is causing hangs in the native DoDragDrop function further down the stack. Arguably this shouldn't be triggered by e.g. ePointerDown either, and I'm unclear on why exactly DoDragDrop is hanging (likely because it is called again before the user does a drop), but this is a quick fix that should be suitable for uplift. MozReview-Commit-ID: A0hBlS85icx

Bug 1444309 - Add a transition effect to the devtools tab. r=gl This patch will apply a transition to devtools tab, this transition same to browser tab transition. MozReview-Commit-ID: 6fdJBKhB6sc

Bug 1170771 - Remove now-empty nsDOMClassInfo. r?bz MozReview-Commit-ID: 7XsiPD1kTt9

Bug 1170771 - Remove ThisTranslator and support code. r?bz MozReview-Commit-ID: Fv0F4RLCnkL

Bug 1449832 - P2 - screen share scale mochitest MozReview-Commit-ID: GbEbdUDsR8T

Bug 1452228 - Add dark-theme tweaks, custom-image restrictions and bug fixes to Activity Stream. r?ursula MozReview-Commit-ID: 5u7251DxLp2

Bug 1427958 - Check modified dates when determining if the shipping address has changed. r?MattN * Compare address timeLastModified as well as the selectedShippingAddress guid when handling new state * Add tests to ensure editing or removing the selected address record correctly updates the UI MozReview-Commit-ID: InQDP55Fs2

Bug 1452104 - Final tweaks to policy names and params. r=felipe MozReview-Commit-ID: CxxCqnyavfL

Bug 1444500 - Add an about:library page to Firefox MozReview-Commit-ID: 5SDwcLum0V9

Bug 1448674 - avoid closing extension ports while detaching tabs r?aswan Extension ports are automatically closed when the message manager of the source is destroyed. When a tab is detached from a window, its frameloader is moved to the new window and the original message manager is destroyed. Bug 1445537 started listening for SwapDocShells events, but that only works for the first swap (e.g. detaching a tab once). To avoid early disconnection of the port, we should continue to subscribe to SwapDocShells events. browser_ext_tab_runtimeConnect.js tests the scenario where a port was opened from an extension page. browser_ext_contentscript_connect_and_move_tabs.js tests the scenario where a port was opened from a content script. MozReview-Commit-ID: G2ZYAhNyHIL

Bug 1392067 - Disconnect open extension ports when the message manager goes away - Previously, if a port is disconnected by the other end, then memory would be leaked to `ProxyMessenger.ports` in ExtensionParent.jsm. To fix this, the port descriptor is now saved separately, keyed by port ID instead of message manager. - Previously, when a message manager was disconnected (e.g. window closed/tab crashed), the port is disconnected only if the port was created from that page. This patch adds bookkeeping to keep track of the message managers at both the sender and receiver's side, so that the port is always disconnected when the other side goes away. - The new test browser_ext_crash_disconnect_port.js checks whether the ports are disconnected as expected. Previously, the subtest connect_from_tab_to_bg_and_crash_tab failed because of the previous point. - Previously, the data structure in ProxyMessenger.ports contained the original `sender` and `recipient`. For the purpose of sending port disconnection messages, these are not necessary and therefore they have been removed. MozReview-Commit-ID: BoaKRVAUKuq

Bug 1452031 - InternalError is not a valid gUM error per spec. Use AbortError instead. MozReview-Commit-ID: 3pMRl1XgkfS

Bug 1452031 - Use strong types for Media error names, fixing OverconstrainedError typo. MozReview-Commit-ID: AqGoW9rBdl5

imported patch undo_jit_clang_issue.patch MozReview-Commit-ID: 2xvAsToLPJm

Bug 1407653: Make the fake h264 encoder/decoder more realistic. MozReview-Commit-ID: 7aC7fdf0RfS

Bug 1449832 - P2 - screen share scale mochitest MozReview-Commit-ID: GbEbdUDsR8T

Bug 1449832 - P1 - scale not crop when a single dimension constraint is supplied MozReview-Commit-ID: LSce4YaUoDP

Bug 1449832 - P2 - screen share scale mochitest MozReview-Commit-ID: GbEbdUDsR8T

Bug 1449832 - P1 - scale not crop when a single dimension constraint is supplied MozReview-Commit-ID: LSce4YaUoDP

Bug 1354458 - wait_for_condition() now replaced with wait().until() in unit tests *** Bug 1354458 - wait_for_condition() now replaced with wait().until() in unit tests final commit *** Bug 1354458 - wait_for_condition() now replaced with wait().until() in unit tests MozReview-Commit-ID: GTVFt2fsZCH