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I'm trying to figure out how many concurrent HTTP connections from a single tab modern browsers support.

I've found old sources saying 10 for Chrome and 17 for Firefox

I'm confused by this because my default network.http.max-connections in Firefox is set to 900:

enter image description here

In Chrome, I can't find a similar setting anywhere.

How many concurrent HTTP connections can I have from a single tab for Firefox/Chrome/Safari?

NB: I'm concerned about both the maximum number of connections to the same domain and the maximum number of connections all domains included.

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Why don't you use a tool like Fiddler to see how many connections your browser is opening per tab? The tool is available here:

https://www.telerik.com/fiddler

It will allow you to debug your whole socket and see what is going on. Good luck!

  • because it is not free and not opensource – Vlad Jul 17 at 17:36

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