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bekh6ex / firefox-container-proxy

[Firefox extension] Assign a proxy to a Firefox container
https://addons.mozilla.org/en-US/firefox/addon/container-proxy/
BSD 2-Clause "Simplified" License
139 stars 14 forks source link

Websites making large numbers of requests cause browser chrome to become unresponsive #34

Closed as-com closed 3 years ago

as-com commented 3 years ago

Steps to reproduce: 1) Create a container 2) Assign a proxy (I used an HTTPS proxy with username/password authentication) 3) Open speedtest.net (some other websites making a large number of requests do this as well)

Expected result: The browser does not crash

Actual result: Browser chrome becomes unresponsive, Firefox process consumes excessive CPU

Firefox versions: 84.0b8 (Developer Edition), 83.0 OS: Windows 10

bekh6ex commented 3 years ago

Sadly I couldn't reproduce the issue.

I don't have Windows, but on Mac in Firefox 84.0.2 speedtest.net works just fine, browser stays responsive, CPU usage of Firefox goes up (to 80-150%), but nothing critical. Also, Firefox Task manager (about:performance) shows that Container proxy add-on barely contributes to the load during the speed test as well as during the page load.

I need more input to continue investigating it. Are you sure that it is Container Proxy extension that makes chrome unresponsive? I am constantly using it for ~1,5 years with HTTPS proxies on Mac and Linux and I don't think I had an issue with unresponsive chrome. Can it be some another extension?

as-com commented 3 years ago

Hmm, it seems there's an issue with Firefox proxy extensions in general (or Firefox itself) and the specific proxy service I'm using. I'm going to keep digging.