Firefox not working

[Hardcoretexan]

After the latest updates, several of my programs will not load (Firefox, Thunderbird, VLC, mines) and when I clicked the suport icon I get an error message "failed to execute default Web Browser. input/output error.

Any help would be appreciated.

[richtea]

Any RESTORE POINTS to fall back on? Open Systemback to check.

[ealgiros]

Hi, I had the same issue !

It started to happen after installing the latest updates for a new installation of LL 3.8

• I installed LL 3.8 from scratch (all fine)
  But, after I installed the latest updates... most of the applications stopped launching anymore.
  So, I searched the web and found the following solution: run from terminal
  

Code:

sudo apt remove virtualbox-guest*

source:

https://forums.linuxmint.com/viewtopic.php?t=266710

Hope it helps,
best regards