Due to changes by Mozilla (maker of Firefox), the new X-Notifier version 4.x for Firefox is not able to allow users to add custom scripts. (The developer has to embed scripts in the program.) Mozilla has said old addons, like X-Notifier 3.x, will no longer work with future Firefox versions 57 and newer. X-Notifier for Chrome browser can still add custom scripts (but does not support POP3 or IMAP scripts, and doesn't provide a toolbar.)
Unless you want to run Chrome with X-Notifier 4.x, or... ...run X-Notifier 3.x and turn off updates for that version of X-Notifier as well as for Firefox. (not recommended)
I have installed a 'portable' version of Firefox 54 (it runs in its own directory, or on a USB stick) with X-Notifier 3.5.23... I just don't try to run my regular Firefox 55 and my portable version of Firefox at the same time... but both are installed on my PC. As I mentioned, I've turned off updates for X-N 3.5.23 and turned off the updates for the portable Firefox 54.
I run X-Notifier 4.1.4 on my regular Firefox 55 (with updates ON).
Using Firefox?
Due to changes by Mozilla (maker of Firefox), the new X-Notifier version 4.x for Firefox is not able to allow users to add custom scripts. (The developer has to embed scripts in the program.)
Mozilla has said old addons, like X-Notifier 3.x, will no longer work with future Firefox versions 57 and newer.
X-Notifier for Chrome browser can still add custom scripts (but does not support POP3 or IMAP scripts, and doesn't provide a toolbar.)
... ok, Thanks for your
Yes Firefox ... ok so GMX is dead for this moment? Thanks for your response :(
Well...
Unless you want to run Chrome with X-Notifier 4.x, or...
...run X-Notifier 3.x and turn off updates for that version of X-Notifier as well as for Firefox. (not recommended)
I have installed a 'portable' version of Firefox 54 (it runs in its own directory, or on a USB stick) with X-Notifier 3.5.23... I just don't try to run my regular Firefox 55 and my portable version of Firefox at the same time... but both are installed on my PC. As I mentioned, I've turned off updates for X-N 3.5.23 and turned off the updates for the portable Firefox 54.
I run X-Notifier 4.1.4 on my regular Firefox 55 (with updates ON).
But mostly, I use Chrome with X-Notifier 4.1.4.