30-39 =link= - Firefox Version

Spanning from June 2014 to November 2015, this set of ten releases represents a critical transition period. It was an era of identity crises, performance chases, feature layoffs (hello, Firefox Hello), and the quiet groundwork for the modern web. For developers, power users, and IT administrators, understanding this range is key to answering legacy compatibility questions, tracking the death of plugins, and appreciating how close Firefox came to irrelevance before its phoenix moment.

Version 35 felt like a Christmas present for front-end developers. (blur, grayscale, contrast) finally landed un-prefixed. Also, Firefox introduced "Share this page" via the toolbar (using system share panels on Android and Windows). firefox version 30-39

By early 2015, the entire industry was still reeling from the Heartbleed bug (2014) and POODLE attacks. Firefox 37 introduced – a blocklist for revoked TLS certificates that synced periodically without full software updates. Spanning from June 2014 to November 2015, this

Below, we break down every major feature, security patch, and developer tool introduced across Firefox 30, 31, 32, 33, 34, 35, 36, 37, 38, and 39. Version 35 felt like a Christmas present for

To understand the decisions made in versions 30 through 39, one must understand the landscape of 2014. Google Chrome had begun its meteoric rise, eating into Internet Explorer and Firefox’s market share with a browser that felt faster, sleeker, and more minimalist. Chrome’s rapid release schedule forced Mozilla to abandon its traditional "version 1.0, 2.0, 3.0" milestone approach in favor of a rapid, six-week release cycle.

This era also saw Mozilla experimenting with "Social Features."

Just like v31, became the new enterprise standard. It also introduced Ruby annotation support (for East Asian typography) and a controversial change: "Reader Mode" loading from a remote Readability server (later made local-only for privacy).