Highlight a string in IDA and look it up using your search engine of choice.
The idea is taken from a plugin by Intezer Labs, which I've decided to rewrite from scratch.
Simply put search_from_ida.py and the icons directory in the user plugins directory:
| OS | User plugins directory |
|---|---|
| Windows | %APPDATA%\Hex-Rays\IDA Pro\plugins |
| Linux/Mac | ~/.idapro/plugins |
Both Python 2 and 3 are supported.
In the plugin's source code, change the value of QUERY_URL_FORMAT.
Optionally, add an icon to the icons directory.