Hi Quân, thanks for reporting the issue If Shopee loads normally in Chrome but not in Firefox, and extensions are already disabled, it’s likely a site compatibility, cache, or network-related issue rather than a general Firefox failure. Here are a few things to try: Clear cache and site data for Shopee only, then reload the site. Corrupted cached data can prevent pages from loading correctly. Try Firefox Troubleshoot Mode to rule out any hidden setting or feature still interfering (even beyond extensions). Check Enhanced Tracking Protection: try clicking the shield icon in the address bar and temporarily turning it off for Shopee, then reload. Some sites break when certain trackers or scripts are blocked. Disable DNS over HTTPS (DoH) temporarily, if enabled, and test again. In some regions, Shopee can fail to load due to DNS or ISP-related routing issues. Make sure Firefox is fully up to date, then restart the browser. If Shopee works in Troubleshoot Mode or with tracking protection disabled, that helps narrow it down to a blocking or privacy-related setting. If it still fails, it may be a regional or site-side compatibility issue with Firefox, in which case reporting it to Mozilla would be helpful. Let us know what you find