How to run web-ext with Firefox DE under linux?

Question

web-ext is a command line tool designed to speed up various parts of the browser extension development process.

When I try web-ext run -t firefox-desktop, I got the following error:

Running web extension from /home/aloisdg/Source/markdin/source
Error: not found: firefox
    at F (/usr/lib/node_modules/web-ext/node_modules/fx-runner/node_modules/which/which.js:63:19)
    at E (/usr/lib/node_modules/web-ext/node_modules/fx-runner/node_modules/which/which.js:72:29)
    at /usr/lib/node_modules/web-ext/node_modules/fx-runner/node_modules/which/which.js:81:16
    at /usr/lib/node_modules/web-ext/node_modules/fx-runner/node_modules/isexe/index.js:44:5
    at /usr/lib/node_modules/web-ext/node_modules/fx-runner/node_modules/isexe/access.js:8:5
    at FSReqCallback.oncomplete (node:fs:188:23)

I think it is because I dont have Firefox but Firefox Developer Edition.

How can I make it works with Firefox Developer Edition?

aloisdg · Answer 1 · 2021-12-21T10:57:17.303

To run your extension with a version of Firefox Desktop other than the default, like the Firefox Developer Edition, use the --firefox option to specify a full path to the binary file.

First let's find the path to our binary. It is really easy:

which firefox-developer-edition

And the path found is /usr/bin/firefox-developer-edition.

Now we can run

web-ext run --firefox="/usr/bin/firefox-developer-edition"

And voilà.

source: Using web-ext, which

How to run web-ext with Firefox DE under linux?

1 Answers1