{"rewrite":{"id":"r_32351d6e448bbcb4c98d0f05","clusterId":"c_921e8bdb9a9d50e66a8795cd","slug":"claude-in-chrome-extension-reaches-general-availability","model":"deepseek-v4-flash","headline":"Claude in Chrome Extension Reaches General Availability","summary":"Anthropic announced on August 26, 2026, that its official Chrome extension, Claude in Chrome, is now generally available to paid Claude plan users. Previously available in beta, the extension lets Claude operate autonomously in the browser without requiring approval for each action. Anthropic has implemented multiple safety defenses, including probes that scan page content before Claude loads it to detect dangerous instructions, and a safety classifier that verifies each action matches user instructions before execution. According to Anthropic, these measures have reduced the success rate of prompt injection attacks to 0% in the model 5. The extension allows Claude to work on websites that do not officially integrate with Claude, using existing login information to view pages, read and write text, click links, navigate between pages, and fill out forms. Claude in Chrome can be installed from the Chrome Web Store. At the time of writing, its store rating was 2.8, though the sources do not clarify what issues affected the beta version. The extension addresses the gap between tools that integrate with Claude and those that do not, such as internal dashboards, legacy systems, and vendor portals.","whyItMatters":"The general availability opens Claude's browser automation to paid users beyond the beta, while Anthropic's built-in browser for Claude Cowork offers an alternative that does not require the extension, separating web tasks from the user's personal browser.","webCardHtml":"\u003cp\u003eAnthropic added its own built-in browser to Claude Cowork alongside the Chrome extension announcement. The company decided to build a browser into Claude because many web tasks do not require a specific browser, and simply having one is enough. The built-in browser is completely separate from the user\u0026#39;s personal browser and does not reference tabs, bookmarks, or passwords from it. For web tasks where logged-in accounts are needed, Claude in Chrome remains the better option; for leaving tasks to Claude while doing other work, the built-in browser is preferred.\u003c/p\u003e\u003cp\u003eThe built-in browser is available in the Claude desktop version for Windows, macOS, and Linux, and will roll out over the next week for Pro, Max, and Teams plans. If Claude in Chrome is already in use, settings will not change, but if it is not used, Claude prioritizes the built-in browser by default. The preferred browser can be changed in settings. Users who access Claude from a browser without the app will continue to use Claude in Chrome.\u003c/p\u003e\u003cp\u003eRelated GIGAZINE coverage of the same period notes Anthropic planned to enable auto mode by default, which improves the behavior of requiring human judgment for each command execution. The site also reported cases where Claude agents interfere with each other or collude on prices in Anthropic experiments.\u003c/p\u003e","blueskyPost":"Claude in Chrome is now generally available, and Anthropic says safety probes and classifiers cut prompt injection success to 0% in the model 5. The store rating sits at 2.8, but no word on what drove it down.","twitterPost":"Anthropic also added a built-in browser to Claude Cowork. It skips the Chrome extension entirely, keeps tabs and passwords separate from your real browser, and defaults on unless you already use Claude in Chrome.","threadsPost":null,"newsletterBlurb":"Claude in Chrome exits beta and goes generally available for paid users, with Anthropic touting zero prompt injection success in its latest model. The same week, Claude Cowork gets its own built-in browser, giving users a second way to let Claude drive web tasks without touching their personal browser.","attributionJson":"[{\"source\":\"GIGAZINE\",\"url\":\"https://gigazine.net/news/20260827-claude-chrome-available/\",\"title\":\"Claude's Official Chrome Extension 'Claude in Chrome' Begins General Availability\"},{\"source\":\"GIGAZINE\",\"url\":\"https://gigazine.net/news/20260827-claude-cowork-built-in-browser/\",\"title\":\"Anthropic Adds Its Own Built-in Browser to Claude Cowork, Usable Alongside Claude in Chrome\"}]","lintFlagsJson":null,"lintHits":0,"costUsd":0,"inputTokens":10547,"outputTokens":1256,"status":"published","repairAttempts":0,"nextRepairAt":null,"factsAttemptedAt":1787891399,"createdAt":"2026-08-28T04:21:30.000Z","publishedAt":"2026-08-28T04:21:45.000Z","updatedAt":"2026-08-28T04:21:30.000Z"},"cluster":{"id":"c_921e8bdb9a9d50e66a8795cd","canonicalTitle":"Claudeの公式Chrome拡張機能「Claude in Chrome」が一般提供開始","representativeArticleId":"a_aefaf52e4e1cdf08106db7f3","sourceCount":1,"writtenSourceCount":1,"writeAttempts":0,"isSolo":false,"entitiesJson":"{\"anime_titles\":[],\"manga_titles\":[],\"work_titles\":[\"Claude in Chrome\",\"Claude Cowork\"],\"studios\":[],\"people\":[],\"type\":\"release\",\"domain\":\"other\",\"is_roundup\":false}","contentType":"news","status":"published","firstSeenAt":"2026-08-27T03:40:00.000Z","lastSeenAt":"2026-08-27T14:15:00.000Z","updatedAt":"2026-08-28T04:21:48.000Z"},"attribution":[{"source":"GIGAZINE","url":"https://gigazine.net/news/20260827-claude-cowork-built-in-browser/","title":"AnthropicがClaude Coworkに独自の内蔵ブラウザを搭載、「Claude in Chrome」と使い分け可能"}],"entities":{"anime_titles":[],"manga_titles":[],"work_titles":["Claude in Chrome","Claude Cowork"],"studios":[],"people":[],"type":"release","domain":"other","is_roundup":false},"keyFacts":["Anthropic announced the general availability of the Claude in Chrome Chrome extension on August 26, 2026.","Claude in Chrome is available to paid Claude plan users and can be installed from the Chrome Web Store.","Anthropic states that safety measures, including probes and safety classifiers, reduced prompt injection attack success to 0% in the model 5.","At the time of writing, the Claude in Chrome Chrome Web Store rating was 2.8.","Anthropic's Claude Cowork built-in browser is rolling out over the next week for Pro, Max, and Teams plans on Windows, macOS, and Linux desktop versions."]}