Hello Joao, I would start Firefox with so called "troubleshoot mode" to see if it gives you any information. As another try, I would start firefox with gdb as explained here: https://firefox-source-docs.mozilla.org/contributing/debugging/debugging_firefox_with_gdb.html
You can also try the same with Chromium. It might be also possible to get debug symbol packages of Firefox and Chromium on some distros. Those would give us more diagnostics. And you can pass the vm logs anyway. Maybe there is something you are overseeing. Cheers Serkan ________________________________ From: Joao Miguel Ferreira <joao.miguel.c.ferre...@gmail.com> Sent: Wednesday, June 29, 2022 4:01 PM To: vbox-users-community@lists.sourceforge.net <vbox-users-community@lists.sourceforge.net> Subject: [External] : [VBox-users] Firefox and Chrome crashing on several VMs (same host) Hello, I've been using VirtualBox for about 10 years and very happy about it. I never had this issue before. I have several debian and ubuntu VMs on a Debian 11 host, fully updated, running Oracle VirtualBox 6.1.34. This issue happens in all guests, with and without guest-additions installed. This issue started only recently, maybe in the last 4 to 5 weeks. I tried to diagnose it but no success. The issue is: after some navigation on misc web sites, firefox and chrome simply crash. I start them again, navigate a bit and they crash again. I tried addind 3D acceleration to one of the VMs but the issue persists. I have searched host and guest logs but I don't see anything that helps me. Do you think there is a way to diagnose this or a way to try to bypass the problem? Thank you Joao
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