{"rewrite":{"id":"r_28db57aa3cb096c0f8951bb0","clusterId":"c_64c36ee06d3608b81bbb33c5","slug":"firefox-155-expands-smart-window-ai-and-shows-blocked-tracker-counts-in-the-address-bar","model":"deepseek-v4-flash","headline":"Firefox 155 Expands Smart Window AI and Shows Blocked Tracker Counts in the Address Bar","summary":"Firefox 155 is out. The AI browsing assistant Smart Window now reaches all users in the United States, Canada, and France, with personalized conversation-resume suggestions and faster web-search answers that cite Exa. The address bar now shows how many trackers the browser blocked, a count that can be hidden without disabling protection. Containers can be reordered by drag, translation adds Marathi and Urdu, and Windows builds improve Nintendo Switch Pro controller support in web games.","whyItMatters":"Firefox 155 puts blocked tracker counts in the address bar and opens Smart Window to all users in the US, Canada, and France, making both privacy protection and AI assistance more visible.","webCardHtml":"\u003cp\u003eFirefox 155 also changes how the browser handles PDF printing: when a PDF page is smaller than the paper, the print scale can now go above 100 percent to fill the sheet. The release caps CSS nesting at 75 levels to prevent crashes from extremely deep nesting, and mailto: links now launch the default mail app only after an explicit user action such as a click. The portal detection domain moved from detectportal.firefox.com to firefox-portal-detection.com.\u003c/p\u003e\u003cp\u003eOn the developer side, the debugger gains a shortcut to toggle all breakpoints at once, JSON Viewer handles JSONL and NDJSON formats, and WebAssembly adds Compact Import Section and Wide Arithmetic support.\u003c/p\u003e","blueskyPost":"Firefox 155 is out. Smart Window now reaches all users in the US, Canada, and France. The address bar shows how many trackers the browser blocked, and the count can be hidden without disabling protection. Containers reorder by drag, and translation adds Marathi and Urdu.","twitterPost":"Firefox 155 is out. Smart Window now reaches all users in the US, Canada, and France. The address bar shows how many trackers the browser blocked, and the count can be hidden without disabling protection. Containers reorder by drag, and translation adds Marathi and Urdu.","threadsPost":null,"newsletterBlurb":"Firefox 155 is live. The AI assistant Smart Window now reaches all users in the US, Canada, and France, and the address bar displays how many trackers the browser blocked, a count you can hide without disabling protection. The release also adds drag reordering for containers, Marathi and Urdu translation, and better Nintendo Switch Pro controller support in Windows web games.","attributionJson":"[{\"source\":\"GIGAZINE\",\"url\":\"https://gigazine.net/news/20260902-firefox-155/\",\"title\":\"Firefox 155 Stable Released, Blocked Tracker Count Shown in Address Bar, and Smart Window Availability Expands\"}]","lintFlagsJson":null,"lintHits":0,"costUsd":0,"inputTokens":5877,"outputTokens":3792,"status":"published","repairAttempts":0,"nextRepairAt":null,"factsAttemptedAt":null,"createdAt":"2026-09-02T13:32:42.000Z","publishedAt":"2026-09-02T13:42:22.000Z","updatedAt":"2026-09-02T13:42:22.000Z"},"cluster":{"id":"c_64c36ee06d3608b81bbb33c5","canonicalTitle":"「Firefox 155」正式版リリース、ブロックしたトラッカー数をアドレスバーに表示＆AI機能「Smart Window」の提供範囲を拡大","representativeArticleId":"a_388457572a90c92e8620609c","sourceCount":1,"writtenSourceCount":1,"writeAttempts":0,"isSolo":true,"entitiesJson":"{\"anime_titles\":[],\"manga_titles\":[],\"work_titles\":[],\"studios\":[],\"people\":[],\"type\":\"release\",\"domain\":\"other\",\"is_roundup\":false}","contentType":"news","status":"published","firstSeenAt":"2026-09-02T01:41:00.000Z","lastSeenAt":"2026-09-02T01:41:00.000Z","updatedAt":"2026-09-02T13:42:23.000Z"},"attribution":[{"source":"GIGAZINE","url":"https://gigazine.net/news/20260902-firefox-155/","title":"「Firefox 155」正式版リリース、ブロックしたトラッカー数をアドレスバーに表示＆AI機能「Smart Window」の提供範囲を拡大"}],"entities":{"anime_titles":[],"manga_titles":[],"work_titles":[],"studios":[],"people":[],"type":"release","domain":"other","is_roundup":false},"keyFacts":null}