Firefox 143 will get Microsoft Copilot AI and Google Lens assist

The most recent replace to Firefox brings the browser as much as model 143 with numerous new options and enhancements, together with some that different browsers already provide. Nevertheless, a few of these options—like Google Lens—are solely being launched regularly. The replace additionally fixes some safety vulnerabilities as standard.

Mozilla plans to launch Firefox 144 on October 14th, 2025.

What’s new in Firefox 143?

The largest addition with this replace is that Microsoft Copilot has been added to the AI chatbots obtainable within the sidebar, becoming a member of ChatGPT, Google Gemini, Anthropic Claude, and Le Chat Mistral.

Firefox 143 additionally provides the power to make use of Google Lens to seek for info on photographs, however this characteristic requires Google to be set because the browser’s default search engine. It’s at the moment rolling out regularly to customers. (Lens is already obtainable in Chrome and Opera One, and Edge has an analogous perform that accesses Bing.)

To manually allow reverse picture searches with Google Lens, navigate to the interior configuration web page by typing about:config into the handle bar, then seek for the browser.search.visualSearch.featureGate flag. If the worth of the flag is about to “false,” double-click it and alter it to “true.” The change ought to take impact instantly.

On Home windows, Firefox 143 can run web sites as net apps that may be pinned on to the Home windows taskbar. There’s a brand new icon on the right-hand facet of the handle bar for pinning. Nevertheless, this doesn’t work with Firefox put in from the Microsoft Retailer. Linux and macOS variations of Firefox will get an analogous characteristic in a while.

Different enhancements embrace: the power to pin tabs by dragging a tab to the designated space on the high of the tab bar; a digital camera preview when web sites request entry to the digital camera; and necessary dates and occasions displayed within the handle bar (akin to Mom’s Day or Easter).

For accessibility purposes—like Home windows Voice Entry, Textual content Cursor Indicator, and Narrator—Firefox provides the choice of utilizing Microsoft UI Automation, permitting such instruments to make use of this interface to work together with the person interfaces of apps. Mozilla additionally plans to regularly roll out this performance within the coming weeks.

Safety updates in Firefox 143

Mozilla’s Safety Advisory 2025-73 for Firefox 143 lists a minimum of 11 eradicated safety vulnerabilities. Mozilla categorizes two of the externally reported vulnerabilities (CVE-2025-10527 and CVE-2025-10528) as excessive danger. These vulnerabilities within the Canvas2D graphics element permit malicious code to interrupt out of the browser sandbox.

The remaining vulnerabilities are thought of medium or low danger, with one exception: the final entry issues an unspecified variety of internally found reminiscence security bugs, summarized underneath identifier CVE-2025-10537. These are additionally thought of excessive danger.