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I am looking for a method that can add side bar to browser. I creating a search extension for cross platform. In firefox there is method for side bar is window.sidebar.addSearchEngine(engineURL, iconURL, suggestedName, suggestedCategory); I am looking soomething similar so i can create search extension.

Thanks,

Building chrome extension
'C:\Program' is not recognized as an internal or external command,

Can you explain why its bring and doesnt make the chrome extention?

Error: Python 3.6 is not supported. Please use version 2.7 or greater.

I will clone kango samples and build ContextMenuItem sample project. Add that output chrome folder in chrome extension now i have one error in background.html console. And background.html scources not in content.js file.

Error in response to tabs.query: TypeError: Cannot read property 'url' of undefined
at BrowserTab.getUrl (chrome-extension://ndadcfapjelifpiknbkheiopbccmkapm/kango/browser.js:11:3804)
at BrowserTab.dispatchMessage (chrome-extension://ndadcfapjelifpiknbkheiopbccmkapm/kango/browser.js:11:4154)
at chrome-extension://ndadcfapjelifpiknbkheiopbccmkapm/main.js:4:13
at Object.callback (chrome-extension://ndadcfapjelifpiknbkheiopbccmkapm/kango/browser.js:11:1016)
at BrowserTabs.getCurrent (chrome-extension://ndadcfapjelifpiknbkheiopbccmkapm/kango/browser.js:11:969)
at Array. (chrome-extension://ndadcfapjelifpiknbkheiopbccmkapm/main.js:3:24)
at ContextMenuItem.dispatchEvent (chrome-extension://ndadcfapjelifpiknbkheiopbccmkapm/kango/utils.js:3:1238)
at ContextMenuItem.fireEvent (chrome-extension://ndadcfapjelifpiknbkheiopbccmkapm/kango/utils.js:3:1462)
at ContextMenuItem. (chrome-extension://ndadcfapjelifpiknbkheiopbccmkapm/kango-ui/context_menu.js:11:468)
at chrome-extension://ndadcfapjelifpiknbkheiopbccmkapm/kango/utils.js:3:4591