Firefox is a web browser available from Mozilla for any OS. (Screen caps provided from Firefox Quantum (65.0.1 64-bit).)
How to Clear Cache and Cookies for Firefox
Log out of any current Avianis sessions.
Click on the '3 bars' in the upper right corner > "Preferences" (gear icon)
Select "Privacy & Security" on the left > scroll down to the 'Cookies and Site Data' section and click on the "Clear Data..." button
Select (check) both "Cookies and Site Data" and "Cached Web Content" > then click the "Clear" button
Restart Firefox. Closing the program completely and opening it again is best.
Log into Avianis and try again
Still not working properly?
Other Tips for Firefox
Do not use 'Private Browsing' windows or tabs for Avianis.
Turn off or disable 'Add-ons' (e.g. Extensions, Themes, or Plugins).
Allow tracking and cookies to ensure all Avianis integrations work seamlessly. Click here to see a walk through guide.