Javascript not working properly | Firefox 119.0

[Miguel_Duarte]

Since the 119.0 update javascript not working properly. I tested multiple computers running Windows 11.

[Miguel_Duarte]

Another example...

[jhg]

We also seem to be having the same issue on Windows 10, 11 & Linux Mint for the tick box's on Gamma Horizon's site.  This is a new phenomena as we've been using Firefox for several years & the Gamma site.

[deconya]

I started to have same issue in different laptops and usuall websites like linkedin, so If mozilla not fix this desaster probably I will need to change. What type of examples do you need¿?  This is happening since july, we are in november.

[jhg]

I've another update on this issue which still remains with the current version of Firefox 120.0.1 64bit  but NOT the ESR version.

I logged into a D-link DWR-921 4G Router to reboot it & couldn't as the buttons were just text using 120...

Just updated to 121.0 and the buttons on the Router now work, but the issue with untick-able boxes on www.unlimitedhorizon.co.uk still persist.

I've installed in parallel the ESR version of Firefox 115.6.0esr 64bit this works as expected on the voicemail & d-link router, so buttons appear on the router & work & the voicemail tick-box are checkable.

[jhg]

Updated to Firefox 122.0 which still does NOT work.  Using Firefox 115.7.0esr DOES work, both 64bit.

[dvanwest]

Also experiencing JavaScript issues in 122.0.1