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Some websites on FirefoxOS Browser can not be displayed (it indicates that "it is embarrassing (...) but website is not responding").

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It happens to quite big amount of websites including big professional websites and some created by me (even if they are on the same server and have the same domain). It starts to be loaded and part of it is displayed, then disappears and the communicate is shown. I am a front-end developer (beginner) and tried to find the rule - which websites have this problems. It does not depend on JavaScript or jQuerry, on external fonts or some "front-end" features. I could only suggest that it might have something to do with "responsive" CSS. This problem have only websites that use @media screen. But some of them are displayed. I really have no idea what happens.

It happens to quite big amount of websites including big professional websites and some created by me (even if they are on the same server and have the same domain). It starts to be loaded and part of it is displayed, then disappears and the communicate is shown. I am a front-end developer (beginner) and tried to find the rule - which websites have this problems. It does not depend on JavaScript or jQuerry, on external fonts or some "front-end" features. I could only suggest that it might have something to do with "responsive" CSS. This problem have only websites that use @media screen. But some of them are displayed. I really have no idea what happens.

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¡Hola!

Can you please give us a few URLs of sites with the issue?

¡Gracias!