I get the same behavior when installing an outdated version of Firefox (62.0)
firefox_mix_of_icons.png (image/png), 263.16 KB, created by Frida Flodin on 2023-08-08 08:39:18 CEST
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Creator: Frida Flodin
Created: 2023-08-08 08:39:18 CEST
Size: 263.16 KB
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Attachments on bug 7970: 1148