Now I use lambdatest Automation with testcafe. Our tests are passed with almost all browsers (Chrome81, Edge17, Edge18, Firefox75, IE11, and iOS safari).
However, Firefox59 is (only) very unstable. It seems to be staled in the early stage of the test with high probability. I can run the test properly after retrying CI 3-6 times.
I just check the following, cannot find a way to resolve it.
- task.js (testcafe internal js?) load error on browser console when interrupting by live.
- This error on Selenium log may be related? The error does not appear on the passed case.
How can I get stable the behavior of Firefox59?