Violent monkey
Violentmonkey, UserScript support for Opera, just like Greasemonkey for Firefox and Tampermonkey for Chrome.
View ArticleGreasefire
Automatically find user scripts on Userscripts.org (requires Greasemonkey or Scriptish)
View ArticleTextarea Backup with expiry
Retains text entered into textareas and contentEditables, and expires after certain time span.
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