Users can limit an AI assistant’s access to browser context by turning off “Share current tab by default” in Gemini in Chrome or “Allow Copilot to read context clues on the web” in Edge, according to the article. In Chrome on a computer, Gemini uses the current tab by default after opt-in; the setting is under Chrome Settings > AI innovations > Gemini in Chrome > Permissions, and turning it off stops automatic sharing of the current tab in new chats without disabling Gemini or manual tab sharing. Google also allows sharing up to 10 additional open tabs, and an already shared tab can be removed through Gemini’s Show shared tabs control. Two other Chrome permissions—media understanding and “Let Gemini browse for you”—do different jobs and are not turned off by disabling default tab sharing. In Edge, Microsoft says Copilot can use browsing data for context-based requests, potentially including a page’s URL, title, content or screenshots, as well as browsing history; the setting is under More (…) > Settings > Copilot and AI. With it off, Copilot does not use browsing data for context-based requests, and Microsoft says responses may be more generic. The control concerns browser context, not deleting Copilot conversations. Turning off Chrome’s tab-sharing permission does not change Google’s Keep Activity setting; for personal accounts, when Keep Activity is off, future chats remain with the account for up to 72 hours and are not used to train its AI models unless