2.1.6: Translator hangs with Add-on "Update Scanner"
If you use the add-on "Update Scanner" [1] (version 3.1.3) with Zotero (version 2.1.6) and click on a link in Update Scanner, Firefox will use 100 % of the CPU and then shows a message if the script "chrome://zotero/content/xpcom/translation/translate.js:995" should be stopped.
[1] http://updatescanner.mozdev.org/en/index.html
[1] http://updatescanner.mozdev.org/en/index.html
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Upgrade Storage
You can work around this by ignoring data:// URLs, or truncating URLs to a sensible length before running your regex.