I took a quick look: * The only regression from bug 1349750 were ones reported shortly after it landed, there aren't any more recent ones on file * I haven't found any other case where toggling this pref off was useful for a diagnostic purpose, nor do I remember any So, I think it should be fine to remove.
Bug 1887515 Comment 1 Edit History
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I took a quick look: * The only regressions from bug 1349750 were ones reported shortly after it landed, there aren't any more recent ones on file * I haven't found any other case where toggling this pref off was useful for a diagnostic purpose, nor do I remember any So, I think it should be fine to remove.