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|06:34, 27 June 2018||Nemo bis||(Localisation guidelines)|
|06:34, 27 June 2018||Nemo bis||(Reply to Confused a little bit)|
|14:10, 5 June 2018||Nike||(Reply to Confused a little bit)|
|09:45, 5 June 2018||Glacious||(Reply to Confused a little bit)|
|08:36, 5 June 2018||Nike||(Reply to Confused a little bit)|
|08:34, 5 June 2018||Liuxinyu970226|
|05:01, 5 June 2018||Glacious|
I would say, but can you give an example of a such message so that I know what you mean exactly.
Did the translation appear over there yet? I don't see it.
Glacious, note that you should translate, not customise. The content of your translation seems very different (there are no per-browser instructions, as far as I can see). If you want to change the message in MediaWiki, you have to propose so to the developers.