How to disable CORS in Mozilla Firefox?

Question

How to disable web security in Firefox or how to solve the CORS problem in Firefox during development?

Everyone tried, but did not work:

• The ability to filter in "about: config" and setting "security.fileuri.strict_origin_policy = false" does not work
• Tried several add-ons such as "CORS-Everywhere" ( https://addons.mozilla.org/en-US/firefox/addon/cors-everywhere/ ). Does not work.

Answer 1

How to disable web security in firefox

not to do. This gives unrealistic test results.

CORS Firefox

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