Add-on Versioning Add-ons should specify their versions using the Toolkit version format. As a rough overview this is a version string split by periods, some examples: 2.0 1.0b1 3.0pre1 5.0.1.2 Note: Before Firefox 1.5 the more basic Firefox Version Format was used: major.minor.release.build[+] where only digits were allowed. The toolkit version format supports the Firefox version format but allow
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