Gecko (GeckoView)
Gecko is the last major independent engine standing against Chromium's dominance. It powers Firefox, Tor Browser, LibreWolf, Mullvad Browser, and Waterfox. Every Gecko release matters for browser diversity and the open web.
๐ Recent Gecko / Firefox Releases
๐ Browsers using Gecko
These browsers share Firefox's engine. Gecko updates affect all of them โ especially security patches.
Deep Dives & Changelogs
What Changed in Gecko: Firefox 134
Firefox 134 brings HEVC hardware decoding, RegExp.escape(), Promise.try(), align-self for absolute positioning, VP8 simulcast for screen sharing, and improved DevTools.
What Changed in Gecko: Firefox 133
Firefox 133 ships Bounce Tracking Protection, Fetch keepalive, Uint8Array Base64/hex methods, WebCodecs ImageDecoder, and dialog toggle events.
What Changed in Gecko: Firefox 132
Firefox 132 delivers PlayReady DRM for 4K streaming, Wide Color Gamut WebGL, post-quantum TLS, fetchpriority, and SVG hardware acceleration.
What Changed in Gecko: Firefox 131
Firefox 131 brings Iterator helpers, Text Fragments, CHIPS cookies, and partitioned storage โ a detailed look at every major Gecko engine change.