![]() ![]() At the same time, it's important for the user to explain all symptoms and other problem details. It's important for you to understand exactly what a problem is before offering advice. Standard troubleshooting steps are outlined in the Troubleshoot and diagnose Firefox problems article.If an issue is not documented, or you aren't sure what the issue is, using the troubleshooting steps on this page may help you narrow down the problem. With any issue, always search the knowledge base before attempting to solve the problem on your own. 3.8 How to know when a problem is not caused by Firefox.3.7 Removing files from the profile folder.3.6 Know how to use features that commonly confuse users.3.5 How to take screenshots on all three operating systems.3.3 Differences between operating systems.2.6 Use WinDbg to debug crashes or hangs on Windows.2.5 Check for running Firefox processes.2.4 Obtain a list of modules in the Firefox process.1.4 Check Add-Ons and try Troubleshoot Mode.1.2 Verify exact behavior for lost or missing data issues (bookmarks, history, settings, cookies). ![]() On Linux and the BSDs, if you are relying on the version of Firefox packaged by your distribution, check with your distro maker for the latest version they’ve published.įollow on Twitter for the latest computer security news. On your mobile phone, check with Google Play or the Apple App Store to ensure you’ve got the latest version. If not, the About window will prompt you to download and activate the needed update – you are looking for 104.0, or ESR 102.2, or ESR 91.13, depending on which release series you are on. On desktops or laptops, go to Help > About Firefox to check if you’re up-to-date. …could end up with security permissions “borrowed” from parent window Y that you would not expect to be passed on (and that you would not knowingly grant) to X, including access to your webcam and microphone. In the second bug, web content from an untrusted site X shown in a sub-window (an IFRAME, short for inline frame) within a trusted site Y… In the first bug, Firefox could be lured into presenting content served up from an unknown and untrusted site as if it had come from a URL hosted on a server that you already knew and trusted.
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