Windows 10 reached EOS (end of support) on October 14, 2025. For more information, see this article.

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

Adguard Windows app causes long loading times

  • 2 replies
  • 0 have this problem
  • 48 views
  • Last reply by jonzn4SUSE

I use Adguard app for Windows which causes long page loading times in Firefox due to extended TLS Handshakes. I have installed the Adguard certificate in Firefox, have turned off DOH in Firefox, etc. etc. but, the only way that I can get a page to load in a timely manner is by clicking on "reload current page" twice in Firefox. This is a delay in itself and is very inconvenient. I understand that the incompatibility of Firefox with Adguard is a known problem and am wondering whether Mozilla is working on a solution in cooperation with Adguard?

I use Adguard app for Windows which causes long page loading times in Firefox due to extended TLS Handshakes. I have installed the Adguard certificate in Firefox, have turned off DOH in Firefox, etc. etc. but, the only way that I can get a page to load in a timely manner is by clicking on "reload current page" twice in Firefox. This is a delay in itself and is very inconvenient. I understand that the incompatibility of Firefox with Adguard is a known problem and am wondering whether Mozilla is working on a solution in cooperation with Adguard?

All Replies (2)

What version of Firefox? Who you using for DNS? Provide an example site that's slow for you by using this add-on that I use to show load time. https://addons.mozilla.org/en-US/firefox/addon/load-time/?utm_source=addons.mozilla.org&utm_medium=referral&utm_content=search

Is this what you're using? https://addons.mozilla.org/en-US/firefox/addon/adguard-adblocker/?utm_source=addons.mozilla.org&utm_medium=referral&utm_content=search

If so, it has not been updated in 2 months. Without Adguard is the browser working correctly? Sounds like you need to ping Adguard for an update or get an add-on that's current. https://addons.mozilla.org/en-US/firefox/addon/adblock-plus/

Here's my load time for Lexus in Japan. see screenshot

Ask a question

You must log in to your account to reply to posts. Please start a new question, if you do not have an account yet.