os security vs browser security

This tag covers discussions comparing the security boundaries of operating systems and web browsers, particularly when one outlives the other's support lifecycle. A key example is Windows 10 reaching end of routine updates while Firefox continues patching on the same OS. The tag explores how browser-level security can partially compensate for an unsupported OS, but cannot fully replace vendor-provided OS security. Topics include the practical limits of browser isolation, the role of Extended Support Releases (ESR), and the trade-offs users face when mixing a legacy OS with a still-maintained browser. The tag is relevant for users evaluating risk mitigation strategies when OS support ends but browser updates remain available.