How to disable CSS in Browser for testing purposes

Question

Is there any way I can disable all external CSS in a browser (Firefox, Chrome...)?

When using slower internet connection, sometimes only the bare HTML is loaded by t

Answer 1

As most answers seem to be pretty old here, referencing menu items I can't seem to find in the current versions of popular browsers, here's how to do it in the current version in Firefox Developer Edition:

• Open Developer Tools (CTRL + SHIFT + I)
• Select the Style Editor tab
• There you should see all sources of CSS in your document. You can disable each of them by clicking the eye icon next to them.