Steps to QA fix 1) Ensure there is no history or favorite sites in other browsers on user desktop 2) Create a new profile and open Nightly 3) Open about:config and set browser.search.region as 'RU' 3) Open about:welcome -> Click Start Setup -> Default fixed topsites displayed should be respective to region RU from list in link below https://searchfox.org/mozilla-central/source/browser/components/newtab/lib/DefaultSites.jsm#15
Bug 1650852 Comment 11 Edit History
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Steps to QA fix 1) Ensure there is no history or favorite sites in other browsers on user desktop 2) Create a new profile and open Nightly 3) Open about:config and set browser.search.region as 'RU' 3) Open about:welcome -> Click Start Setup -> Default fixed topsites displayed should be respective to region RU from list in link below https://searchfox.org/mozilla-central/source/browser/components/newtab/lib/DefaultSites.jsm#31