Hello, - Computer Nec Versa One P/N NNAN1700202 (32-bit) - XUbuntu 18.04.2LTS (i386), no upgrade possible to 19 LTS - Message asking for an update of Firefox (expired root certificate, extensions disconnection) - Proposed download completed (Firefox 135.0) - Firefox/ Help/ "About Firefox": 113.0.2 (32 bits), no update proposal - Launch the . exe file from previous download In the "About Firefox" window, version 135.0 appears well during installation When the computer is restarted, this panel has returned to version 113 The computer works normally and perfectly meets my needs (emails and internet searches), so it is out of the question to change it (it would be scandalous from an environmental point of view) What should I do? Thank you for giving me the precise instructions on how to proceed. Sincerely, FC