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Firefox's Jetpack add-ons taking off soon


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Jetpack, the revamped foundation for add-ons that customize Firefox, is could arrive in its first beta form Monday.

Myk Melez, a leader of the project, issued a release candidate Wednesday for the software and hopes to release the beta Monday, he said in a mailing list announcement.

"To have the most successful possible release, it's imperative that we test the hell out of this release candidate to shake out any last remaining release blockers," he said, referring to bugs that are bad enough to hold up the software.

Jetpack, taking a page from the Google Chrome extensions playbook, is a mechanism to let developers write add-ons using Web programming technologies such as HTML, JavaScript, and CSS. Apple followed suit with its own similar extensions mechanism in Safari 5, and Opera is doing the same with Opera 11, currently in beta testing. The approaches are similar enough that Opera Chief Technology Officer Hakon Wium Lie believes that the browser extension framework eventually could be standardized.

Extending browsers lets people significantly expand what the software can do without burdening the vast majority of users with undesired features. What Mozilla calls add-ons its rivals generally call extensions. They're separate from plug-ins such as Adobe Systems' Flash Player or Unity 3D's gaming engine, which integrate through a different interface.

Firefox has had add-ons for years, but using a more complicated technology called XUL. It's sophisticated to permit very elaborate modifications to the browser, but Mozilla believes Jetpack will make add-on programming easier and more accessible. It also hopes the add-ons will be less prone to a major problem with today's add-ons, incompatibilities that break them when new versions of the browser arrive.

The Jetpack 1.0 beta won't have all possible interfaces Mozilla hopes to open up to developers. However, Mozilla expects to keep those interfaces it does have stable in future versions, Melez said.

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Jetpack extensions are going to change the way Firefox works. I heard how XUL (current addons are written in it) is one of the main reason of slowdown for Firefox. I've tried 2-3 Jetpack extensions, and they are just great. :D

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This still doesn't excuse them for not meeting their deadline(s) for FF4 final product release. I believe this should be treated as a separate entity altogether, since the stand-alone browser should be able to hold its own without the use of additional jetpack extensions.

BTW DKT27, I love the "Stan" avatar! :D

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I've had Jetpack installed for quite some time, never gotten around actually using an addon with it though :P

@Jessica

Lol @ your sig :P

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Jetpack extensions are going to change the way Firefox works. I heard how XUL (current addons are written in it) is one of the main reason of slowdown for Firefox. I've tried 2-3 Jetpack extensions, and they are just great. :D

I am not raining on your parade.. BUT.. while Jetpack Extensions ( tried a year or two ago ) are great and can be better than the XUL thing.. You can also have massive slow down from these as well.. and you have to have adequate knowledge of how to write them as well..

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@heath28m: Well you could be right there. But from what I've read, XUL is itself problematic in its own ways and hence causing slow downs. Of course never too sure about it, but atleast a positive step. I remember, I tried it about 4 months ago, and was amazed how those extensions were light on my system and those extensions under that jetpack addon didn't need any Firefox restarts. :)

@Jessica: Thanks. :D

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