mobile-config-firefox/src/userChrome/findbar.css

/* Copyright 2021 Oliver Smith
 * SPDX-License-Identifier: GPL-3.0-or-later */

@media (max-width: 700px) {
    /* Findbar */
    [anonid="findbar-textbox-wrapper"] {
        min-width: 160px;
        width: 160px;
    }
    [anonid="findbar-textbox"] {
        max-width: 100px;
        min-width: 100px;
        width: 100px;
    }
    .findbar-button {
        font-size: 6pt;
    }
    /* Save space */
    .findbar-match-diacritics,
    .findbar-entire-word,
    .found-matches,
    .findbar-find-status,
    .find-status-icon
    {
        display: none;
    }
}