[spanish]

Hace un rato he ido a instalarme unas cuantas extensiones de Firefox y a actualizar otras, y siempre me daba un error tal que:

"Firefox could not install the file because: Unexpected installation error. Review the error Console log for more detail. -203"

La solución ha sido bastante fácil, en ésta página se explica un método bastante engorroso (básicamente cargarse toda la configuración y reinstalar), pero en un comentario se sugiere borrar tan sólo el fichero extensions.rdf. Mano de santo, borrando sólo ese fichero se ha solucionado el problema. :)

Por cierto, en MacOS X está en:

$HOME/Library/Application Support/Firefox/Profiles/PERFIL/extensions.rdf.

[/spanish]

[english]

Just a moment ago, I wanted to install some Firefox extensions and update some others, but every time I tried FF gave this error:

"Firefox could not install the file because: Unexpected installation error. Review the error Console log for more detail. -203"

The fix has been quite easy. First result on a Google search was this page, where they explain a method that seems quite a drag (basically, whipe all the config out and reinstall everything), but some guy suggests in a comment that the only file you need to remove is extensions.rdf. It worked for me, just by deleting that file the problem was gone. :)

By the way, on MacOS X this file is in:

$HOME/Library/Application Support/Firefox/Profiles/PROFILE/extensions.rdf.

[/english]