h2 proxy bug 1563538 added a temporary "network.http.spdy.bug1563538" pref in case its tunnel stream fix needed to be disabled quickly. That was almost two years ago (Firefox 68) and we haven't needed to disable this pref yet, so we can probably remove this pref and the old code paths now.
Differential Revision: https://phabricator.services.mozilla.com/D119942
This patch include a small change to ServiceWorkerManager::StoreRegistration which does early exist
and not store the registration on disk if:
- the principal is from a WebExtension
- the addon is not enabled (or was already uninstalled) by the time we got to store the registration
- the addon is temporarily installed
At the moment it should not happen, but if ServiceWorkerManager::StoreRegistration was reached too late
for some reason and the registration was meant to be stored, the service worker would still be registered
again when the addon is started again on the next browser startup and stored on disk if it was meant to.
Depends on D119529
Differential Revision: https://phabricator.services.mozilla.com/D119530
This becomes possible as a side effect of making sure that the current
buffer content is always completely valid, by blitting from the
previous buffer, analogous to
`NativeLayerCA::HandlePartialUpdate` and
`WindowSurfaceWaylandMB::HandlePartialUpdate`.
Apart from reducing overpaint, this improves correctness is many
situations, avoiding glitches.
Note: the approach here may not be optimal concerning efficiency yet
and improvements are planed after further refactoring.
Depends on D118925
Differential Revision: https://phabricator.services.mozilla.com/D119015
Now, `nsIFrame::HandleEvent` moves selection at middle mouse button down. This
occurs before dispatching the event into the system event group. Therefore,
`AutoScrollChild` cannot prevent it.
On the other hand, Chrome does not start autoscroll when a modifier is pressed.
This means that our users may not be able to use middle click with modifiers
if web apps do not call `preventDefault()` as expected. So, this difference
is a potential risk of web-compat.
Therefore, this patch makes `AutoScrollChild` stop starting autoscroll if
`Shift` key is pressed.
Differential Revision: https://phabricator.services.mozilla.com/D119253
This becomes possible as a side effect of making sure that the current
buffer content is always completely valid, by blitting from the
previous buffer, analogous to
`NativeLayerCA::HandlePartialUpdate` and
`WindowSurfaceWaylandMB::HandlePartialUpdate`.
Apart from reducing overpaint, this improves correctness is many
situations, avoiding glitches.
Note: the approach here may not be optimal concerning efficiency yet
and improvements are planed after further refactoring.
Depends on D118925
Differential Revision: https://phabricator.services.mozilla.com/D119015
We enable this mitigation by default because:
- The alternate UX is about:blank or corrupted content. That's never good.
- We want to make sure that our test coverage handles this mitigation because
it's want we want to ship.
However, we do explicitly disable it for all ServiceWorker WPT's via
`__dir__.ini` directive at the root of the service-workers test tree.
This is motivated by the
`/service-workers/service-worker/update-recovery.https.html` test which
intentionally tests a broken ServiceWorker being able to be updated. It
explicitly tests that the intercepted broken iframe shouldn't successfully
load, but our mitigation makes it load, which breaks the test.
Depends on D111845
Differential Revision: https://phabricator.services.mozilla.com/D111993
As it gives us better guarantees about correctness, it allows us to enable
performance optimizations such as D118192, which reduces redraws.
Another advantage is that it does not need any extra knowledge about
compositors as it does not make any assumptions about buffer holding
behaviour.
Differential Revision: https://phabricator.services.mozilla.com/D119668
We enable this mitigation by default because:
- The alternate UX is about:blank or corrupted content. That's never good.
- We want to make sure that our test coverage handles this mitigation because
it's want we want to ship.
However, we do explicitly disable it for all ServiceWorker WPT's via
`__dir__.ini` directive at the root of the service-workers test tree.
This is motivated by the
`/service-workers/service-worker/update-recovery.https.html` test which
intentionally tests a broken ServiceWorker being able to be updated. It
explicitly tests that the intercepted broken iframe shouldn't successfully
load, but our mitigation makes it load, which breaks the test.
Depends on D111845
Differential Revision: https://phabricator.services.mozilla.com/D111993
This patch launches content processes with the `MOZ_HEADLESS` env var set
if they're using GTK with an X11 display (and there's no other reason
they'd need GTK).
The goal is to avoid exhausting Xorg's default limit of 256 clients if
there are many content processes due to Fission. If these conditions
are met, the content process doesn't need to eagerly connect to the X
server. This does not affect the sandbox policy, and content processes
can still use X if needed for, e.g., WebGL.
The boolean pref `dom.ipc.avoid-gtk`, set by default, controls this
feature. In the future it could also be extended to minimize GTK use
with Wayland displays.
Note that disabling `widget.non-native-theme.enabled`, which is also
enabled by default, will restore the use of X11 in all content processes
even if this pref is set; the alternative is that widgets wouldn't render
in that case.
This change will also save some memory for now-unnecessary instances of
GTK's global state, and improve content process startup time.
Remove also the temp pref dom.ipc.remote-mozIcon because it cannot work
anymore with the content process being headless.
Differential Revision: https://phabricator.services.mozilla.com/D112197
Now that the about:third-party page landed (bug 1695817), we can remove the predecessor.
This patch reverts the Part10 patch of bug 1669036 (d9f8cdf2877b), keeping the other patches
which are required for about:third-party page.
Differential Revision: https://phabricator.services.mozilla.com/D118382
Paul Zuehlcke
Eden Chuang
Jeff Muizelaar
Sean Feng
Kagami Sascha Rosylight
Brindusan Cristian
Csoregi Natalia
Shane Caraveo
Andrew Osmond
Sonia Singla
Bob Owen
Ryan Hunt
Alexandru Michis
Iulian Moraru
Chris Peterson
Brendan Dahl
Markus Stange
Luca Greco
Harry Twyford
Robert Mader
Sandor Molnar
Masayuki Nakano
Paul Bone
Andrew Sutherland
Jonathan Kew
Julian Descottes
Mike Kaply
Jed Davis
Toshihito Kikuchi
Andrew Creskey
Randell Jesup
Christoph Kerschbaumer
Florian Quèze
Brad Werth