Tabs Outliner has the potential to be the best browser tool that Google never built -- but you obviously don't have the time to maintain it -- why not open source the project? Many developers like myself would be interested to contribute bug fixes and improvements. It would make the tool much more powerful for users.
I understand that you would like to get paid for your work, but it seems you need a different business model than you currently have to keep up with technical issues like memory consumption, crashes, etc. Consider open sourcing this, and let the developer community help you!
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