Firefox Development Edition hangs it is not workable

Dear developers,

Working on a Mac with OS 10.14.6 this very handy tool starts but after that it hangs all of the time.

So it is really not usefull at all.

Am I the only one? Is my Mac bad… PHPStorm is working without no problem at all.

RAM 16GB
2,7 GHx Intel Core i5

Best Regards,

Sjoerd

Please visit https://support.mozilla.org/ for help.