New Update Firefox Nightly now lets you access Microsoft Copilot from the sidebar

lokamoka820

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Mozilla is testing a new feature in Firefox Nightly, which adds Microsoft Copilot to the sidebar. Cue the pitchforks!

That gecko's up to something.

Firefox already has 4 chatbots: Anthropic Claude, ChatGPT, Google Gemini, and Le Chat Mistral. Windows Report's Venkat (the Techdows guy), spotted the addition of Copilot in the side panel of Firefox Nightly. Mozilla has been working on bringing Copilot to Firefox for nearly a year.

Screenshot 2025-09-05 at 21-56-08 Firefox Nightly now lets you access Microsoft Copilot from t...png

When you select Copilot on the sidebar, the panel describes the AIs features briefly. You can use Copilot in Firefox without an account, but there are some restrictions like daily limits, no personalization, sync chats, shorter responses, etc. The chatbot can be used to generate text, images, code, and analyze images. Users with a premium subscription can access more features.

Screenshot 2025-09-05 at 21-56-17 Firefox Nightly now lets you access Microsoft Copilot from t...png

Click on a new chat, and you should see "Quick response", click on this button to switch between 3 modes.
 
As I don't use the sidebar & never directly use Ai its probably not going to make much difference on a personal basis.
To be honest, I don't use sidebars in any browser (Vivaldi is Exception), but I started using AI for some searches because it can summarize info faster than reading 10 articles to find a conclusion in the end by yourself, I used to open ChatGPT on a tab when needed, but when I got Windows 11 24H2 and get Copilot with it, I want to uninstall it immediately, but tried it for curiosity, and it was good, what I liked is that it doesn't need account to use, just open and ask what you want.
 
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I started using AI for some searches because it can summarize info faster than reading 10 articles to find a conclusion in the end by yourself,
I do this with Brave Search's on demand AI summary. I hate Google's summary that users can't disable, or use on demand.
While most AI users prefer ChatGPT, I found Microsoft Copilot more interesting, and it is already installed in windows
I sometimes use Gemini, but I may have to give Copilot a try for occasional research, and to compare to Gemini.
I think Firefox wants to follow other browser with AI integration.
Indeed.
Here are a couple of articles on AI, search, branding, etc.
From Manufactured Scandals to AI Misinformation
From Killing Privacy to Killing Democracy
 
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