The website you mentioned show Metamask, which support 4 different Browser. Why don't you just use Firefox and download Metamask?
Due to privacy converns i won't use Metamask.
As no better option available: i had end up checking InfinityWallet DNS requests: (also the http(s) traffic)
#wallet statistics ?
api.infinitywallet.io
shard.infinitywallet.io
metrix.infinitywallet.io
#check if network is available
google.com
#analytics
google-analytics.com
googletagmanager.com
gvt1.com
#update check
github.com
api.github.com
github-releases.githubusercontent.com
#rates
www.coingecko.com
api.coingecko.com
www.floatrates.com
#BSC
api.bscscan.com
bsc-dataseed.binance.org
dex.binance.org
explorer.binance.org
#WalletConnect
bridge.walletconnect.org
#push transaction
api.etherscan.io
api.ethplorer.io
#polygon
api.polygonscan.com
polygon-rpc.com
#Groestlcoin
blockbook.groestlcoin.org
#BTC
blockbook-bitcoin.binancechain.io
btc1.trezor.io
btc2.trezor.io
btc3.trezor.io
btc4.trezor.io
btc5.trezor.io
#Doge
blockbook-dogecoin.binancechain.io
doge1.trezor.io
doge2.trezor.io
doge3.trezor.io
doge4.trezor.io
doge5.trezor.io
#ETH
eth2.trezor.io
#LTC
blockbook-litecoin.binancechain.io
litecoinblockexplorer.net
ltc1.trezor.io
ltc2.trezor.io
ltc3.trezor.io
ltc4.trezor.io
ltc5.trezor.io
#ripple
data.ripple.com
s1.ripple.com
#info
mainnet.infura.io
After some tests i had end up blocking these domains:
vim /etc/hosts
127.0.0.1 api.infinitywallet.io
127.0.0.1 shard.infinitywallet.io
127.0.0.1 metrix.infinitywallet.io
127.0.0.1 www.googletagmanager.com
127.0.0.1 gvt1.com
127.0.0.1 www.google-analytics.com
127.0.0.1 github.com
127.0.0.1 api.github.com
127.0.0.1 github-releases.githubusercontent.com
This+TOR will hopefully be enough to protect my privacy/security while the wallet still works as expected.