Firefox’s biggest redesign in years just landed with Nova
Mozilla's Firefox 157 update debuts its new Nova design with 12 themes as well as fixes dozens of high-risk security vulnerabilities. Credit: Mozilla Firefox 157 is out for Windows, macOS, Linux, and Android and the biggest change in this version is the new Nova design, which brings a more modern look to the browser. Mozilla has also fixed over 70 security vulnerabilities, and updates are also available for the Firefox ESR versions.
- ▪Mozilla's Firefox 157 update debuts its new Nova design with 12 themes as well as fixes dozens of high-risk security vulnerabilities.
- ▪Credit: Mozilla Firefox 157 is out for Windows, macOS, Linux, and Android and the biggest change in this version is the new Nova design, which brings a more modern look to the browser.
- ▪Mozilla has also fixed over 70 security vulnerabilities, and updates are also available for the Firefox ESR versions.
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| Original publisher | PCWorld |
| Canonical URL | https://www.pcworld.com/article/3247664/firefoxs-biggest-redesign-in-years-just-landed-with-nova.html |
| Publication time | Wed, 30 Sep 2026 16:36:02 +0000 |
| Retrieval time | 2026-09-30T16:37:01.689Z |
| Last seen | 2026-09-30T16:37:01.689Z |
| Headline source | Publisher (no WeSearch rewrite) |
| Excerpt source | publisher body |
| Excerpt method | First ~120 words (~800 chars) of extracted publisher body, fair-use limited. |
| Summary | WeSearch · cerebras-chat (WeSearch summarizer) |
| Summary source text | contentText |
| Citation coverage | Summary is a WeSearch-generated derivative; primary citation is the original publisher URL. |
| Cluster | Yhq2XzQcOS4g · 1 stories |
| Cluster logic | Grouped by semantic title/content similarity across sources within a rolling window. Same-publisher template collisions are excluded from coverage comparison. |
| Ranking reason | Story pages are not engagement-ranked. Hub feeds use recency, with optional source-diversified chronological ordering (cap consecutive stories per source). No personalized ranking. |
| Publisher visit | Yes — open original |
| Substitutes article? | No — link-out required for full text |
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| Indexing | May the item be indexed (stored, ranked, made findable)? | Allowed |
| Snippet | May a short excerpt of the publisher's text be shown? | Allowed |
| AI summary | May WeSearch generate its own short summary of the article? | Limited |
| Retrieval / RAG | May the content be exposed for third-party retrieval-augmented generation? | Not asserted |
| Model training | May the content be used to train AI models? | Not asserted |
| Commercial reuse | May the content be reused commercially? | Not permitted |
Basis: Derived from the published RSS/Atom feed. Contact: [email protected]. Reviewed: 2026-07-24.
Opening excerpt (first ~120 words) tap to expand
Mozilla's Firefox 157 update debuts its new Nova design with 12 themes as well as fixes dozens of high-risk security vulnerabilities. Credit: Mozilla Firefox 157 is out for Windows, macOS, Linux, and Android and the biggest change in this version is the new Nova design, which brings a more modern look to the browser. Mozilla has also fixed over 70 security vulnerabilities, and updates are also available for the Firefox ESR versions. The release of Firefox 158 is scheduled for October 13th, 2026. What’s new in Firefox 157? Now that Firefox has adopted a two-week release cycle, major new features are growing fewer and farther between. With Firefox 157, the focus is on the new Nova design, which has heavily rounded corners and subtle color gradients on surfaces.
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Excerpt limited to ~120 words for fair-use compliance. The full article is at PCWorld.
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