ewald.tienkamp.nl » revdep-rebuild http://ewald.tienkamp.nl Gentoo Linux and whatever else I think needs to be shot into cyberspace. Sat, 04 Sep 2010 08:39:02 +0000 en hourly 1 http://wordpress.org/?v=3.0.4 “Couldn’t load XPCOM” after Firefox upgrade http://ewald.tienkamp.nl/2009/07/27/couldnt-load-xpcom-after-firefox-upgrade/ http://ewald.tienkamp.nl/2009/07/27/couldnt-load-xpcom-after-firefox-upgrade/#comments Mon, 27 Jul 2009 09:34:50 +0000 Ewald http://ewald.tienkamp.nl/?p=67 After Mozilla Firefox 3.5(.1) was finally unmasked in Portage, I upgraded from 3.0. Unfortunately, after the update, Firefox would not start anymore and when started from a terminal, it would leave me with a cryptic “Couldn’t load XPCOM.”.

Searching around for this error did not provide me with many easy to apply solutions. I found quite a few forumposts and a Mozilla Dev page on this specific error.

In this case, the forumposts lead me to the rather easy solution: if, when using Gentoo, you encounter a problem with dependencies, simply run revdep-rebuild:
revdep-rebuild -p
In this case, nss turned out to be the culprit and after a remerge (rerun revdep-rebuild without the -p flag) Firefox 3.5 would load as expected.

If you happen to find this page, but are not a Gentoo, but a different Linux or even a Windows or Mac OSX user, try some of the suggestions suitable for your OS, found in the Mozilla Developers Center.

[edit]28 July: according to the visitor numbers, I’m not the only one to experience this error. If people want to let me know whether this did or did not solve the issue for them, leave a comment below.[/edit]

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