Oh my Firewoks !!!

Bonjour @françoisb3280079,

Do you have a paid Creative Cloud ALL APPS plan?  You will need one to access discontinued software like Fireworks.  Log-in to your account below to confirm your paid plan is active.

https://account.adobe.com/plans

1. Open Creative Cloud desktop app and click the All apps tab on left side. 

2. Click on your avatar (top, right image) and select Preferences.

3. Click on Apps and Scroll down to Settings.

4. Check the box to Show Older Apps.  See screenshot.

5. Click the blue button.

NOTE:  If you don't see the Settings option to Show Older Apps, contact your IT department at school or office and ask them to create a Fireworks package for you.

Hope that helps.