--- title: Prompt Tuning Firefox Shake to Summarize for Recipes description: Mozilla engineers describe how they refined the prompt behind Firefox's Shake to Summarize feature to handle recipe webpages correctly. Early prompts caused... canonical: https://daily.dev/posts/prompt-tuning-firefox-shake-to-summarize-for-recipes-4eogiow9u twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Prompt Tuning Firefox Shake to Summarize for Recipes | daily.dev og:description: Mozilla engineers describe how they refined the prompt behind Firefox's Shake to Summarize feature to handle recipe webpages correctly. Early prompts caused... og:url: https://daily.dev/posts/prompt-tuning-firefox-shake-to-summarize-for-recipes-4eogiow9u og:image: https://api.daily.dev/og/posts/4eOgiOW9u.png og:image:alt: Prompt Tuning Firefox Shake to Summarize for Recipes og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Prompt Tuning Firefox Shake to Summarize for Recipes **[Mozilla](https://daily.dev/sources/mozilla)** · 7 min read · 2 upvotes · 0 comments ## Summary Mozilla engineers describe how they refined the prompt behind Firefox's Shake to Summarize feature to handle recipe webpages correctly. Early prompts caused the model to over-summarize recipes, dropping ingredients or steps. The fix was routing recipe pages to a dedicated, more explicit prompt (identified via structured data on the page) rather than overloading a single general-purpose summarization prompt, which more than doubled the rate of complete, accurate recipe summaries. The broader takeaway: reducing ambiguity and narrowing task scope for small models matters as much as model size. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Questions this post answers ### Why did my LLM summarization prompt drop ingredients when summarizing recipe pages? A single general-purpose summarization prompt tends to over-summarize recipes, omitting key ingredients or skipping the recipe entirely, because smaller models struggle to infer unstated format needs across varied content types. The fix is a dedicated recipe-specific prompt, explicitly listing servings, total time, ingredients, steps, and tips, routed to recipe pages using structured data metadata rather than an extra model inference pass. _Developers debugging inconsistent LLM summarization can compare prompt-routing approaches like this one on daily.dev._ ### How much did routing recipe pages to a dedicated prompt improve summary accuracy compared to a single general prompt? Testing over a curated set of recipe sites showed the dedicated recipe prompt was more than twice as likely to produce a complete and accurate summary compared to the original single general-purpose prompt that handled all content types including recipes. _Teams iterating on LLM prompt strategies can track real-world case studies like this on daily.dev._ ## Similar posts on daily.dev - [Firefox’s Shake to Summarize expands to Android and new languages on iOS](https://daily.dev/posts/firefox-s-shake-to-summarize-expands-to-android-and-new-languages-on-ios-91wsjxcyy) · Mozilla · 0 upvotes · 0 comments - [Shake to Summarize recognized with special mention in TIME’s Best Inventions of 2025](https://daily.dev/posts/shake-to-summarize-recognized-with-special-mention-in-time-s-best-inventions-of-2025-wjo2zzkw2) · Mozilla · 0 upvotes · 0 comments - [Under the hood: The AI powering Firefox’s Shake to Summarize](https://daily.dev/posts/under-the-hood-the-ai-powering-firefox-s-shake-to-summarize-du6trjo78) · Mozilla · 2 upvotes · 0 comments - [The duality of language models in the browser](https://daily.dev/posts/the-duality-of-language-models-in-the-browser-ywrqdsevh) · Dave Rupert · 10 upvotes · 0 comments - [Build new features using built-in AI in Chrome](https://daily.dev/posts/build-new-features-using-built-in-ai-in-chrome-gmmbpgcby) · Chrome Developers · 0 upvotes · 0 comments --- Tags: [#llm](https://daily.dev/tags/llm), [#prompt-engineering](https://daily.dev/tags/prompt-engineering), [#firefox](https://daily.dev/tags/firefox), [#local-ai](https://daily.dev/tags/local-ai), [#mozilla](https://daily.dev/tags/mozilla) [View this post on daily.dev](https://daily.dev/posts/prompt-tuning-firefox-shake-to-summarize-for-recipes-4eogiow9u) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Prompt Tuning Firefox Shake to Summarize for Recipes","url":"https://daily.dev/posts/prompt-tuning-firefox-shake-to-summarize-for-recipes-4eogiow9u","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/prompt-tuning-firefox-shake-to-summarize-for-recipes-4eogiow9u"},"datePublished":"2026-10-01T16:00:09.366Z","dateModified":"2026-10-01T16:00:28.321Z","description":"Mozilla engineers describe how they refined the prompt behind Firefox's Shake to Summarize feature to handle recipe webpages correctly. 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