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Opera extensions: buttons, badges and popupsThis article takes you through the ins and outs of implementing buttons, badges and popups for Opera extensions.
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David Storey, Chief Web Opener, Product Manager Opera Dragonfly, Opera Software ASA
I found an other problem. <input type="file"> does not work: http://ruzanow.ru/opera/extensions/upload-to.oex
25. October 2010, 09:56:37 (edited)
extension. That was the only change to the example.
After packaging the extension I tried to drag&drop the extension in Opera.
There I get the error message "The installation was unsuccessful. Please try again later".
Can somebody give me a hint ?
Sorry. I found the answer in the forum.
I've packaged the folder. When I package only the content of the folder it works.