1197472 - Keyboard input is very slow since update of Firefox ESR 38

Status: NEW

(Core :: DOM: UI Events & Focus Handling, defect)

Description

[Thomas]

User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:38.0) Gecko/20100101 Firefox/38.0
Build ID: 20150806103657

Steps to reproduce:

Update to Firefox ESR 38.2 or ESR 38.1


Actual results:

Afte the update to Firefox ESR 38 keyboard typing has become very slow. Same happened with Thunderbird, but there was an improvement of the speed in 38.2 Update again.


Expected results:

Should be quick as before

Comment 1

[Justin [:JW_SoftvisionQA]]

Hello Thomas,

Do you have this problem on the newest firefox build 42.0?

Thank you,

Justin

Comment 2

[Thomas]

Hallo Justin,

as I wrote, I am using the ESR version, which is 38.4.0 now.
Meanwhile I could solve the problem by switching of the spell-checker. Either it was switched on automatically by the update to version 38 or it didn't delay the typing before. I never changed this option myself.