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# Enter the Web site URI You visit a webpage.# You have not been able to use it with your Web browsers of choiceSomething about the experience is broken: layout is messed up, video doesn't play, buttons don't work, etc.# '''Check on other browsersin another browser'''. Are Is it working there any differences making the site unusable. but not in Firefox?

This guide is focused on Mozilla browsers but you can also help other browser vendors. If you have an issue with Opera ([https://bugs.opera.com/wizarddesktop/ Bug Wizard]), Chrome ([http://code.google.com/p/chromium/issues/entry Bug]), Safari ([https://bugs.webkit.org/ Bug]) or Internet Explorer ([https://connect.microsoft.com/IE Bug]). PSNote: We try to avoid to fix working on fixing Web sites which are working badly everywhere. We focus first our energy on Web sites which are broken in one browser and not the others.

You will need a Mozilla bugzilla GitHub account. If not you don't have one, [https://bugzillagithub.mozilla.orgcom/createaccount.cgi you can create a new account](it's free). AlternatelyYou can also file bugs anonymously, you can open a bug on [https://webcompat.com/?open=1 webcompat.com ]but that makes it hard to follow up— filing with an account is preferred!

The person (volunteer or Mozilla engineer) will need to know which A good bug report includes steps you have followed to reach reproduce an issue, and what the issueexpected outcome was. The more details you give, the better chance the issue will be properly addressed. If, for example, one must log in to see the issue, it is important to say so.Screenshots can also be very helpful!

# Create a [https://bugzillawebcompat.mozilla.orgcom/form.mobile.compat ?open=1 new bug in Bugzillaon webcompat.com]## Describe Include the steps you have been doing for reaching the point where you have an issue: URL'''[https://bugzilla.mozilla.org/show_bug.cgi?id=901569##c0 Example of Include the steps]'''to perform to see the problem after opening that URL## Describe what is happeningthe expected behavior## Describe what you were expectingthe actual behavior## Give relevant information about your device and your browser# (Bonus) Test in one or more browsers to understand the differences: [https://bugzilla.mozilla.org/show_bug.cgi?id=843165#c1 Example of tests in different browsers]

Someone might ask further questions in the bug report to better understand the issue. This is why it's important to report issues with a GitHub account — you'll be able to get notifications about questions and progress.