Category Archives: Firefox

Migrando a Safari: complementos

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Me he cansado de Firefox, cada vez me iba más lento en casa, tarda en arrancar, se cuelga, a veces empieza a consumir CPU como loco … así que como aún no hay Chrome/Chromium oficial/estable para Mac y  aprovechando que ha salido Safari 4 y las betas tenían muy buena pinta, estoy migrando a este navegador.

Pero echaba en falta los complementos de Firefox, algunos de los cuales me parecen imprescindibles. Alternativas para Safari:

Por ahora estoy muy contento con el cambio.

Optimizando MacOS X Leopard

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Mi Mac llevaba unos días funcionando medio mal, lento, tardaba en responder, etc. Le he estado dando un poco de cariño ;-) y ahora va como la seda.

Cosas a probar para mejorar el rendimiento:

  • Con la utilidad de discos, comprobar la integridad del disco y de los permisos. Si hay que hacer cambios será necesario reiniciar desde el DVD de instalación y ejecutar la utilidad de discos desde ahí.
  • Con OnyX (o herramientas similares), ejecutar todas las tareas de “mantenimiento” y “limpieza”: borrado de cachés varias; reconstrucción de índices, BDs y registros varios, etc.
  • Preferencias del Sistema -> Cuentas -> Arranque: eliminar residentes innecesarios.
  • Desinstalar indexadores si no los usas, p.ej. Google Desktop y Spotlight (se puede desactivar la indexación de Spotlight con OnyX). UPDATE: Spotlight no se usa sólo para buscar ficheros, también es la búsqueda que lleva integrada Mail.app. Dicho de otra forma, sin Spotlight no hay búsqueda en el correo. He vuelto a activarlo y tras reconstruir índices y tal el rendimiento sigue siendo bueno.
  • Optimizar las BD sqlite de Firefox:
    find $HOME/Library/Application\ Support/Firefox/ -iregex ".*sqlite" -exec sqlite3 {} 'VACUUM;' \;

Descargar videos de YouTube con Firefox

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I wanted to take a look at some YouTube videos, but with my unstable 3G connection the streaming doesn’t perform quite well. So I have tried to download them with the VideoDownload Firefox extension that I had already used on some other ocasions, but this time it hasn’t worked. YouTube must have change something and this extension, that hasn’t been updated since last year, doesn’t work any more. Well, this is what Google is for. ;)

After trying with 2 or 3 different extensions, I’ve found this page with a “bookmarklet” to download videos from several streaming services (not only YouTube) and a Greasemonkey stript which detects if the current page is supported and has a streaming video, and displays a link to download it. Very easy to use and convenient. :)

The only drawback: it seems that YouTube has some kind of anti-deep-linking method in place, and the download fails unless you do it directly with Firefox. It won’t work with any download manager, not even DownThemAll!, that beeing a Firefox extension I though would be able to handle the cookies/referer/whatever YouTube uses to prevent the downloads. Well, nobody’s perfect.

Error -203 al instalar extensiones en Firefox

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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.