At my workplace mozilla, I have a number of custom search engines. On a nearly daily basis, they get overwritten by some system-wide default. I can restore them manually by restoring the default search engines in the search settings, quitting mozilla, then replacing the search.json.mozlz4 file that gets created in my firefox profile folder by a copy of this file with my personalized search engines (luckily I had a backup copy of search.json.mozlz4). Is there a way to "restore default search engines" automatically, through some config file setting/copying? It's both very tiring not to have my search engines, and to "restore default search engines" manually on a nearly daily basis. Thanks!