How to determine in which browser your extension background script is executing?...

How to allow chrome extension to access his path and files...

Opera API: Is there a way to get the tabs in the current workspace?...

How to make a tab redirect in the Opera extension?...

opera extension and Microsoft edge extension compatibility...

How can a Chrome extension check at runtime if it is running on Opera?...

Why in Opera the 'chrome_url_overrides' is not allowed for specified extension ID?...

Can't get the href value of an anchor tag with jQuery...

Add extension to Opera Neon...

Open external program using URI Scheme without creating new tabs...

Is there an API to automate uploading of Opera add-ons to addons.opera.com?...

Match pattern for all Google search pages...

How to know whether a chrome extension is downloaded from store?...

IndexedDB getAll() ordering...

Which IDE is best for extension development?...

chrome.webNavigation.onCompleted fired before completion?...

Client side usage of Stylus (CSS)...

Using element.click() to simulate a Button Click in Javascript...

Opera Sync and chrome.storage.sync...

API to get the list of all search providers/engines?...

Sidebar API opr.sidebarAction.setBadgeText doesn't work in Opera 36.0.2114.0...

How to open a web page on the sidebar?...

Does Opera extension manifest have a similar set default tab page like Chrome?...

Any way to derive the Opera extension store url from the extension ID?...

Opera Sidebar onBlur event doesn't fire when sidebar closing...

remove listener from injected script...

Context menu in Chrome - two actions (left/right click on item menu)...

Can an Options page have a page action in an Opera extension?...

Omnibox results are sorted alphabetically in Opera...

Are there plans to support chrome.system.display API in a future version of Opera?...