chore: do not set Firefox’ window-size option on headless mode (#640)
#498
| Job | Run time |
|---|---|
| 12s | |
| 6m 6s | |
| 6m 2s | |
| 5m 52s | |
| 30s | |
| 6m 44s | |
| 6m 9s | |
| 6m 0s | |
| 5m 48s | |
| 5m 51s | |
| 5m 54s | |
| 6m 4s | |
| 6m 4s | |
| 6m 43s | |
| 3m 15s | |
| 20s | |
| 1h 17m 34s |