To open *Electrum*, choose **Apps ▸ Internet ▸ Electrum Bitcoin Wallet**.
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<p><i>Electrum</i> uses <i>mBTC</i> as the default base unit. 1 mBTC = 0.001 BTC. To change this setting choose <span class="menuchoice"> **e base unit, choose <b>Tools** ▸ **Preference**</span> and open the **Appearance** tabs</b>.</p>
Click on the <span class="guimenu">Select the[[!img lib/pango-down.png alt="menu toggleView Options" class="symbolic" link="no"]]</span> button in the title bar and chooseselect the option **Show Hidden Files**.
In the past, different wallets have worked with different versions of Debian.For example, Trezor hardware wallets stopped working in Debian 12 (Bookworm), so they don't work in Tails6.0 or later.