Intent to prototype: WebAssembly exception handling proposal

Summary: We intend to prototype the exception handling proposal for WebAssembly. The proposal adds a general exception handling facility, allowing languages that target Wasm to compile to a native exception feature rather than using JavaScript's exceptions. Much of the implementation has already

Recent changes to C++ XPCOM hashtable class templates

Hi, TL;DR The XPCOM hashtable types of first choice are now nsTHashMap and nsTHashSet, e.g. nsTHashMap> or nsTHashSet. The interface of nsTHashtable/nsBaseHashtable and its subtypes is maintained, after some changes had been made to these class templates themselves. In particular, nika and janv

Intent to ship: PerformanceEventTiming API

As of Firefox 89, I intend to turn PerformanceEventTiming API on by default on all channels. It has been developed behind the `dom.enable_event_timing` preference. Chrome has it enabled by default since 85. Bug to turn on by default: https://bugzilla.mozilla.org/show_bug.cgi?id=1701029 This

On longstanding webcompat issue about padding-bottom/padding-right missing in scroll containers

Over the years, we accumulate a lot of duplicates in Bug 748518 about `overflow:auto/scroll` container's padding-bottom / padding-right is missing in Firefox when scrolling to the bottom / right. Blink and WebKit have this behavior for most