@Sreekanth Reddy Thanks for posting in our Q&A. From your description, did you mean that you want to install extensions on Firefox using intune? If there is anything misunderstanding, please correct me.
Firefox is a third-party browser. It is needed to ingest the Firefox's ADMX-file first and then configure extensions. It is suggested to try the following actions:
- Firstly, please try to create a configuration Profile for firefox.admx. Please refer to the steps under "Initial setup" in the following link:
https://support.mozilla.org/en-US/kb/managing-firefox-intune
Note: Non-Microsoft link, just for the reference. - Then refer to the following blog to install extensions.
https://securitygeneralist.blogspot.com/2019/08/auto-installing-extensions-on-firefox.html
Note: Non-Microsoft link, just for the reference.
Hope it will give you some ideas.
If the answer is the right solution, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.