# Browser competition on Windows 11

> Live situation record from CLSTR: https://clstr.news/situations/browser-competition-on-windows-11
> Updated: 2026-10-18T22:42:09.000Z. Sources: 6. Developments: 2.

The competition for browser dominance on Windows 11 has intensified involving multiple technology companies. Mozilla has accused Microsoft of employing ‘dark patterns’ and harmful design techniques to prioritize the Edge browser, alleging that the company is failing to uphold commitments to respect user choice regarding browser defaults outside of European jurisdictions regulated by the Digital Markets Act.

In response to the struggle for market share, Google has deployed targeted pop-up messages on its search homepage to encourage Windows 11 users to switch from Edge to Chrome. Microsoft has countered these efforts by displaying banners within the Edge browser that highlight its security features and its shared use of the Chromium engine with Chrome.

## Timeline

### 2026-10-18: Google and Microsoft clash over browser dominance on Windows 11

Google is using pop-up prompts on its search page to drive Windows 11 users from Microsoft Edge to Chrome, prompting a retaliatory response from Microsoft.

3 sources. https://clstr.news/cluster/google-and-microsoft-clash-over-browser-dominance-on-windows-11

### 2026-10-17: Mozilla accuses Microsoft of using dark patterns to force Edge usage

Mozilla accuses Microsoft of using dark patterns in Windows 11 to force Edge usage, noting that while EU laws mandate browser choice, other regions lack similar protections.

3 sources. https://clstr.news/cluster/mozilla-accuses-microsoft-of-using-dark-patterns-to-force-edge-usage

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Cite as: Browser competition on Windows 11. CLSTR, https://clstr.news/situations/browser-competition-on-windows-11