Mozilla shipped a follow-up update to last week’s major refresh, releasing Firefox 142.0.1 as a focused bug-fix build that patches several user-facing regressions and a handful of platform-specific crashes — an important, incremental step that most users should install as soon as it reaches their systems.
Firefox’s rapid-release cadence has meant that substantive feature changes and small, targeted hotfixes often appear within days of each other. Firefox 142 — which introduced a number of developer-facing APIs and visible UI improvements — landed on stable recently, and Mozilla moved quickly to correct issues discovered in the field by issuing 142.0.1 on August 27, 2025. The official release notes list a small set of fixes concentrated on tab behaviour, text-cursor placement, and platform crashes. The update is packaged as a typical minor-stability release: it is distributed through Mozilla’s normal channels (the built‑in updater triggered by Menu > Help > About Firefox), the Mozilla download pages and build mirrors, and it is available in packaged formats suitable for Windows deployment (including MSIX/MSI/MSIx artifacts). The release is already mirrored on Mozilla’s servers. (mozilla.org, neowin.net, neowin.net, firefox-source-docs.mozilla.org, mozilla.org, mozilla.org, support.mozilla.org, support.mozilla.org, mozilla.org, mozilla.org, firefox-source-docs.mozilla.org, mozilla.org, neowin.net)
Source: Windows Report Firefox 142.0.1 rolls out with key bug fixes
Background / Overview
Firefox’s rapid-release cadence has meant that substantive feature changes and small, targeted hotfixes often appear within days of each other. Firefox 142 — which introduced a number of developer-facing APIs and visible UI improvements — landed on stable recently, and Mozilla moved quickly to correct issues discovered in the field by issuing 142.0.1 on August 27, 2025. The official release notes list a small set of fixes concentrated on tab behaviour, text-cursor placement, and platform crashes. The update is packaged as a typical minor-stability release: it is distributed through Mozilla’s normal channels (the built‑in updater triggered by Menu > Help > About Firefox), the Mozilla download pages and build mirrors, and it is available in packaged formats suitable for Windows deployment (including MSIX/MSI/MSIx artifacts). The release is already mirrored on Mozilla’s servers. (mozilla.org, neowin.net, neowin.net, firefox-source-docs.mozilla.org, mozilla.org, mozilla.org, support.mozilla.org, support.mozilla.org, mozilla.org, mozilla.org, firefox-source-docs.mozilla.org, mozilla.org, neowin.net)Source: Windows Report Firefox 142.0.1 rolls out with key bug fixes
