v5.2.7

Added --no-clobber switch to search.json.mozlz4 file copy.
So the user can alter the search engine without it being overwritten on next start.

v5.2.5

Added support for the Vivaldi web browser
Change default search engine for (newly created) Firefox SSB's to DuckDuckGo

v5.2.3

all updates to date, see changelog