"Submit your Safari extension today," the email says. "Selected extensions will be featured on the new Safari Extensions Gallery. Weâll soon be launching the Safari Extensions Gallery, a new destination that provides you with an opportunity to increase the visibility of your Safari extension beyond your website."
The note adds, "the Safari Extensions Gallery will feature selected extensions that offer an innovative user experience. And a one-click installation process will allow users to seamlessly install extensions from a developerâs website without ever having to leave the Gallery. Have your extension considered for the Safari Extensions Gallery. Submit your extension download URL and supporting metadata today."
Developers can already distribute Safari extensions on their own, and at least one site has appeared to draw attention to the browser extensions that are already available.
"It remains unclear just how choosy Appleâs Safari Extension Gallery will be," writes Jonas Wisser, who maintains the Safari Extensions blog. "From the line about innovative user experiences, it seems like thereâs a chance the SEG will be more selective than the App Store has been. If thatâs the case, I will likely continue posting submitted extensions here to provide a less curated center for extension distribution."
How Safari 5 Extensions work
Apple originally announced the coming Safari Extension Gallery alongside the release of Safari 5 at WWDC. It presents the extension feature as a way for third parties to create buttons for the toolbar or make your own extension bar, change the way web content appears or add controls to web pages.
"Help with putting it all together is built right in. Itâs called Extension Builder, and it makes it simple to package your extension for distribution and installation. Instead of manually entering your scripts, menu items, stylesheets, and commands in a complicated text file, you can select your extension resources visually in a template thatâs as easy to fill out as a form. You can also use the built-in Web Inspector to design, debug, and optimize your extension, just as you would a website."
Apple also notes that "every Safari extension is signed with an Apple-provided digital certificate â free with the Safari Developer Program. The certificate protects the extensions you develop from tampering and ensures that updates come only from you. Safari Extensions also include built-in defenses like sandboxing, which safeguards your extensions from being used to access information on a userâs system"