Manual installation worked for me. Note, that I have installed Insomnia
on Fedora using snap
.
- Go to your plugins directory:
cd /home/user/snap/insomnia/current/.config/Insomnia/plugins
- Install the plugin manually (in this case it's
insomnia-plugin-default-headers
plugin):
npm install insomnia-plugin-default-headers
- Reload insomnia plugins: Tools -> Reload plugins