Jupyter notebook unable to launch after certificate installs

Hi all, I'm a novice Ubuntu/linux user and no problems installing and using jupyter notebook. However, after installing Citrix receiver and some certificate permissions, I get the below error when I try to launch Jupyter Notebook.:

```
[I 14:39:54.593 NotebookApp] Writing notebook server cookie secret to /run/user/1000/jupyter/notebook_cookie_secret

PermissionError: [Errno 13] Permission denied: '/usr/local/lib/netscape/mime.types'
```

After installing Citrix, I ran the below commands to since I was getting certificate errors when launching citrix from chrome. Notebooks that I had open crashed after I ran the updates for the certificates and I get the error above when I try to launch new ones.

```
sudo update-ca-certificates
sudo ln -s /usr/share/ca-certificates/mozilla/* /opt/Citrix/ICAClient/keystore/cacerts/
sudo c_rehash /opt/Citrix/ICAClient/keystore/cacerts/
/opt/Citrix/ICAClient/util/configmgr &

```

Any help would be appreciated. Thanks.

Start by reproducing a Jupyter Notebook launch after the listed certificate commands, then inspect the access permissions for /usr/local/lib/netscape/mime.types. Determine whether the failure is in the notebook launch path or the Ubuntu/Citrix certificate setup; done means the notebook launches without this PermissionError.

Written by the indexing model from the issue text.