Why is the Firefox block blocked before loading the document?

Question

Firefox runs on my site much slower than IE or Chrome. When I check the network tab, I see that 235 ms was spent blocking. On my site, chrome does not report blocking, and firefox does not report blocking for other sites, such as google or amazon. It also has a much longer intake time than chrome.

His understanding is that blocking occurs because the browser has a limited number of connections that it can make:

What does “Lock” mean in the Firebug Net panel?

Here is an example of blocking a site in front of a document: http://thehill.com/ (sorry in advance for the policy). Blocking on this site does not always happen (this happens on my site) and is about 1/10 of the length of the blocking on my site.

Should the browser always have all its connections when it tries to download a document? Why will firefox block the document, not chrome, and how to fix it?

Answer 1

Firefox has its own http proxy settings. IE and chrome take proxy settings from Windows settings. Check if there is a difference between the FF and IE settings.

The next thing you can do is create a new, fresh profile in FF (make sure there are no addons added) and try again.

Answer 2

try making your javascript calls asynchronous. My wild guess (without any codes, which is the only possible) is that you have some kind of javascript call that blocks. try optimizing and debugging javascript, maybe this will help you see where the lock appeared.