It needs access to all sites because I don't know what would be the Url of your Jira site. You can very well look at the source code to understand what it does with the permission.

However, couple of weeks back I have already announced that I am going to narrow down the permission scope to only access Atlassian sites which would happen in upcoming version about to be released in next couple of weeks. You can look at the announcement in following url and is also shown within the tool's notification section.

https://jiraassistant.com/contact-us/

Additionally, this implementation is already available in Chrome extension. If you want to immediately start using it, then you can try the chrome extension temporarily while I publish updates to other browsers.

Sorry to know that. Kindly provide more details and I would try to help you get it working.

Are you using containers in Firefox? If yes, then Jira Assistant does not support using browser session based authentication with containers as of now. You can try with oAuth instead which should work.

Otherwise please contact me via email and I will help you get this issue resolved.