Browser makers express frustration with invasive third-party antivirus software, which can make PCs less secure
Update your software and OS regularly instead, practice skeptical computing. — Former Firefox developer Robert O'Callahan, now a free agent and safe from the PR tentacles …
Context & Ripple Effects
This lands a few months after Kaspersky accused Microsoft of anticompetitively bundling its own antivirus into Windows, so the AV industry was already fighting a two-front war: squeezed by OS-level defaults below and, per this piece, resented by browser teams above. Robert O'Callahan, speaking freely after leaving Mozilla, argues the invasive hooking third-party AV does inside browser processes actively makes PCs less secure.
His prescription — update your software and OS regularly instead — puts browser makers and antivirus vendors on opposite sides of what 'security' means on the desktop.
First-order effects
- Users running invasive third-party antivirus get weaker protection, not stronger, because the software's deep system hooks interfere with the browser processes it claims to defend.
- Browser vendors like Mozilla see their rapid patch cycles undermined when AV layers sit between their updates and the user's machine.
Second-order effects
- Antivirus firms such as Kaspersky — already at war with Microsoft over Windows bundling — now face browser makers framing their core product as a liability, squeezing them from both directions.
- Browsers keep absorbing the security role themselves: Google's aggressive flagging of newly created downloads as potential malware shows Chrome already acting as a de facto gatekeeper where AV used to be.
Third-order effects
- If the pattern holds, endpoint security consolidates into platform defaults — OS updates plus hardened browsers — shrinking the market for standalone consumer AV suites.
- That shift raises the stakes of the browser-as-security-boundary argument: whoever controls the browser increasingly controls the user's defense layer, a role regulators may eventually scrutinize the way they scrutinize OS bundling.
The trend: Desktop security is migrating from third-party antivirus suites toward built-in platform defenses, with browser vendors positioning themselves as the primary line of defense.