Opera 11 coming soon with extension support

Opera next brows­er ver­sion 11 is com­ing soon with exten­sion sup­port just like oth­er browsers chrome exten­sion and fire­fox add-ons. Devel­op­ers can write exten­sions to extent the func­tion­al­i­ty using open stan­dards (HTML5, CSS, JavaScript) and sup­port­ed APIs. The exten­sions are based on W3c Wid­get spec­i­fi­ca­tions.In the first release of Opera Exten­sions focus­ing on open web stan­dards. The alpha release sup­ports injectable JavaScript, call­outs, cer­tain UI items and a basic Tabs and Win­dows API.

Source : Opera 11 will have Extensions