Bug 1684006 - use the temp dir for downloads in uriloader tests, r=mak a=test-only
This ensures that we don't leave downloads behind in race conditions, and that that
doesn't break future tests.
Differential Revision: https://phabricator.services.mozilla.com/D101041
Three byte UTF-8, first byte 0xE1-EC, including first and last charactersin the range: ကシャーロック쿿