Om dizze add-ons te brûken, moatte jo Firefox downloade.

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Print Edit WE troch DW-dev

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troch Trubadur, 7 jierren lyn
The installation page tells me persistently: "This add-on requires a newer version of Firefox (at least version 55.0). You are using Firefox 47.0." but I already have version 61

Antwurd ûntwikkeler

7 jierren lyn pleatst
Do you have Firefox 47.0 running in the background when you start Firefox 61.0?

If not, then it is very likely that your Firefox profile has become corrupted. Creating a new Firefox profile should resolve this problem.