A Firefox feature (or add-on) that lets users assign privacy levels per tab or per container — think of it like a privacy slider that follows each tab. 
  
 🧠 How It Works 
 When you open a new tab, you can pick a Privacy Mode Badge: 
 
 Level Name Features Enabled Ideal Use
 
 
 
 🟢 Normal 
 Balanced 
 Standard cookies, normal history 
 Everyday browsing 
 🟡 Guarded 
 Enhanced Privacy 
 Blocks third-party cookies, disables trackers 
 Reading news or light research 
 🔴 Stealth 
 Ultra Private 
 No cookies, no history, auto-closes on idle 
 Private searches, sensitive tasks
 Each tab shows a small “bubble icon” (🟢🟡🔴) on the tab bar — click it to toggle modes instantly.     
 Technical Approach 
 
 
 Uses Firefox Containers API or WebExtension storage to isolate cookies & local storage per privacy level. 
 
 
 Dynamic headers (like DNT, Referer) adjusted based on privacy mode. 
 
 
 Optionally integrates with Startpage, DuckDuckGo, or Brave Search in Stealth mode. 
 
 
 Auto-closes Stealth tabs after N minutes of inactivity (user-configurable)     
 Why It’s Unique 
 
 
 Firefox already has Private Mode and Containers, but not an adaptive privacy layer per tab. 
 
 
 It merges convenience + transparency + control in one intuitive visual model. 
 
 
 Perfect for privacy-conscious users who don’t want to open full new windows constantly.     
   
 Possible Implementation (for add-on devs) 
 Using: // Example: Switch privacy level dynamically  browser.webRequest.onBeforeSendHeaders.addListener(  (details) => {  const level = getPrivacyLevel(details.tabId);  if (level === "stealth") {  details.requestHeaders.push({ name: "DNT", value: "1" });  details.requestHeaders.push({ name: "Referer", value: "" });  }  return { requestHeaders: details.requestHeaders };  },  { urls: ["<all_urls>"] },  ["blocking", "requestHeaders"]  ); 
   
 
 
 
  
  
   
 
 
 
 
 
 
 
   
 
 
   
 
 
 
 
   
 
 
   
 
 
   
 
 
 
 
 
 
 
 
						
					
					... View more