Thunderbird error: Couldn't load XPCOM - you can do that
If you receive the error message "Couldn't load XPCOM" at Thunderbird, your profile could not be loaded. In this practical tip, we will tell you what you can do about it.
Thunderbird error "Couldn't load XPCOM" - what to do?
The error "Couldn't load XPCOM" says that there is a problem with your Thunderbird profile and the program therefore cannot be opened.
- To fix this error, first download the free Revo Uninstaller tool and install it on your PC.
- After successful installation, open the tool and wait for the list of installed programs to be created. Then search for "Thunderbird" and right click on it.
- Then select "Advanced" as the uninstallation method and follow the instructions.
- After uninstalling Thunderbird from the PC, Revo Uninstaller searches your PC for leftover files, folders and registry entries.
- You can then remove them from the PC with "Mark all" and "Delete".
- As soon as you have completed the complete uninstallation, you can download the latest version of Thunderbird after a PC restart and install it as usual. After that, the error should be gone.
