We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Warning: Potential Security Risk Ahead with mitm

more options

I'm using firefox on m1 mac with the help of a proxy tool, like loon. But every time i try to search with google or duckduckgo or bing and other search engines on firefox with the function of mitm of the proxy tool open, i was told "Firefox detected a potential security threat and did not continue to duckduckgo.com. If you visit this site, attackers could try to steal information like your passwords, emails, or credit card details.".

I have tried to import the cert of the proxy tool into the firefox, but it doesn't work.

And it won't happen on other chromium browser and safari under the same settings of the proxy tool.

What should i do to prevent firefox blocking my searching?

I'm using firefox on m1 mac with the help of a proxy tool, like loon. But every time i try to search with google or duckduckgo or bing and other search engines on firefox with the function of mitm of the proxy tool open, i was told "Firefox detected a potential security threat and did not continue to duckduckgo.com. If you visit this site, attackers could try to steal information like your passwords, emails, or credit card details.". I have tried to import the cert of the proxy tool into the firefox, but it doesn't work. And it won't happen on other chromium browser and safari under the same settings of the proxy tool. What should i do to prevent firefox blocking my searching?

All Replies (1)

more options

Hi there! It sounds like you're encountering a security warning in Firefox due to the proxy tool you're using. To address this, you can try these steps: First, ensure you've correctly imported the proxy tool's certificate into Firefox. If that doesn't work, go to Firefox's settings, search for "Certificates," and click on "View Certificates." From there, add the proxy certificate under the "Authorities" tab. If the issue persists, it's possible that the proxy tool's setup might need adjustment. Check if there are any specific settings related to SSL interception or certificate handling in the proxy tool. Remember, it's always important to exercise caution with proxy tools, as they can sometimes trigger security warnings. Hope this helps you resolve the issue!