This bug was filed from the Socorro interface and is report bp-f5bb0a2d-04c3-40ce-8ce2-b0ed00180824. ============================================================= Top 10 frames of crashing thread: 0 libxul.so mozilla::extensions::URLInfo::CSpec const toolkit/components/extensions/MatchPattern.cpp:174 1 libxul.so mozilla::extensions::URLInfo::Spec const toolkit/components/extensions/MatchPattern.cpp:183 2 libxul.so mozilla::extensions::MozDocumentMatcher::Matches const toolkit/components/extensions/MatchPattern.cpp:205 3 libxul.so mozilla::ExtensionPolicyService::InjectContentScripts const [clone .cold.289] 4 libxul.so mozilla::ForEachDocShell gcc/include/c++/6.4.0/functional:2127 5 libxul.so mozilla::ExtensionPolicyService::InjectContentScripts toolkit/components/extensions/ExtensionPolicyService.cpp:421 6 libxul.so mozilla::extensions::WebExtensionPolicy::InjectContentScripts toolkit/components/extensions/WebExtensionPolicy.cpp:337 7 libxul.so mozilla::dom::WebExtensionPolicy_Binding::injectContentScripts dom/bindings/WebExtensionPolicyBinding.cpp:1705 8 libxul.so bool mozilla::dom::binding_detail::GenericMethod<mozilla::dom::binding_detail::NormalThisPolicy, mozilla::dom::binding_detail::ThrowExceptions> dom/bindings/BindingUtils.cpp:3296 9 libxul.so js::InternalCallOrConstruct js/src/vm/Interpreter.cpp:449 ============================================================= There is 1 crash in nightly 63 with buildid 20180824100112. In analyzing the backtrace, the regression may have been introduced by patch [1] to fix bug 1484373. [1] https://hg.mozilla.org/mozilla-central/rev?node=a7848dcb339e

Comment on attachment 9004022 [details] Bug 1486057: Skip uninitialized windows when injecting content scripts. r=mixedpuppy Shane Caraveo (:mixedpuppy) has approved the revision.

https://hg.mozilla.org/integration/mozilla-inbound/rev/292e35a4377f5f6c5534dad4f4df349010de41b9 Bug 1486057: Skip uninitialized windows when injecting content scripts. r=mixedpuppy

Is manual testing required on this bug? If yes, please provide some STR and the proper extension(if required) or set the “qe-verify -“ flag. Thanks!