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

CSS is missing from the performance analysis in network tab

  • 1 cavab
  • 0 have this problem
  • 4 views
  • Last reply by zeroknight

more options

In the network tab, I can see all the html, css, and js loaded on my page.

When I click on Start performance analysis (stopwatch icon in bottom left), it shows pie charts of the asset sizes, but CSS is missing.

When I click the back button, the network tab only shows 14 items, and no CSS.

I'm using Firefox on Linux Mint, installed through the software manager.

In the network tab, I can see all the html, css, and js loaded on my page. When I click on Start performance analysis (stopwatch icon in bottom left), it shows pie charts of the asset sizes, but CSS is missing. When I click the back button, the network tab only shows 14 items, and no CSS. I'm using Firefox on Linux Mint, installed through the software manager.
Attached screenshots

All Replies (1)

more options

It works for me on version 122 with sites that have CSS in the Network Monitor.

Can you link an example site?