I upgraded from KDE 4 to KDE 5. Since then Firefox 38.7 crashes with a segmentation fault when opening a save-as-dialog or an open-file-dialog (for uploading). Reproducibly: always. Interestingly, the crash does not happen on another box with a clean installation (no upgrade from KDE 4) but otherwise identical packages, identical use flags, identical architecture. So I recompiled the whole system via "equery list -F '$cp:$slot' -f '.*' > all-packages.txt", "emerge --oneshot --keep-going `cat all-packages.txt`". The problem persisted. Hence, I recompiled the whole system a 2nd time with CFLAGS="-O2 -march=core-avx2 -pipe -ggdb" FEATURES="splitdebug compressdebug" See attached backtrace of core dump.
Created attachment 431716 [details] Backtrace of crashed firefox (core dump)
Could you test a newer version of www-client/firefox?
The crash does not occur after an upgrade to version 45.x.y. However, the crash also disappears with a clean user profile and version 38.7. I cannot check if the bug does still exist in 45.x.y. in principle. Under the assumption that a broken user profile triggers the bug, I cannot reproduce the error because if I take my (assumedly broken) user profile from 38.7 and then upgrade, the newer version of firefox sanitizes the user profile on first start up and thus cleans out the presumably error.
removing kde from cc then, nothing to do for us. Feel free to stable a newer version.
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