Package: thunderbird Version: 1:140.3.0esr-1~deb12u1 Severity: important Since the upgrade to the latest version, the compose window behaves strange. "Compose messages in HTML format" is disabled.
Steps to reproduce the bug: 1. Reply to a mail with some text paragraphs. 2. Click at the end of some quoted text paragraph and press Return to respond to that paragraph. 3. Type some characters, e.g. "Why?". 4. Use Backspace to delete what you have typed. 5. For every character deleted, a newline is added at the end of the mail before the signature text. 6. When you delete the first character of the line, the line disapeares completely and the cursor is moved after the end of the quoted text. I can reproduce the bug with a completely fresh Thunderbird profile where I only added my mail account and disabled "Compose messages in HTML format". No other setting changed. -- System Information: Debian Release: 12.12 APT prefers oldstable-security APT policy: (500, 'oldstable-security'), (500, 'oldstable-proposed-updates'), (500, 'oldstable') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 6.6.103.1.amd64-smp (SMP w/20 CPU threads; PREEMPT) Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8), LANGUAGE=de:en_US:en_GB Shell: /bin/sh linked to /usr/bin/dash Init: systemd (via /run/systemd/system) Versions of packages thunderbird depends on: ii debianutils 5.7-0.5~deb12u1 ii fontconfig 2.14.1-4 ii kdialog 4:22.12.3-1 ii libasound2 1.2.8-1+b1 ii libatk1.0-0 2.46.0-5 ii libc6 2.36-9+deb12u13 ii libcairo-gobject2 1.16.0-7 ii libcairo2 1.16.0-7 ii libdbus-1-3 1.14.10-1~deb12u1 ii libevent-2.1-7 2.1.12-stable-8 ii libffi8 3.4.4-1 ii libfontconfig1 2.14.1-4 ii libfreetype6 2.12.1+dfsg-5+deb12u4 ii libgcc-s1 12.2.0-14+deb12u1 ii libgdk-pixbuf-2.0-0 2.42.10+dfsg-1+deb12u2 ii libglib2.0-0 2.74.6-2+deb12u7 ii libgtk-3-0 3.24.38-2~deb12u3 ii libnspr4 2:4.35-1 ii libotr5 4.1.1-5 ii libpango-1.0-0 1.50.12+ds-1 ii libstdc++6 12.2.0-14+deb12u1 ii libvpx7 1.12.0-1+deb12u4 ii libx11-6 2:1.8.4-2+deb12u2 ii libx11-xcb1 2:1.8.4-2+deb12u2 ii libxcb-shm0 1.15-1 ii libxcb1 1.15-1 ii libxext6 2:1.3.4-1+b1 ii libxrandr2 2:1.5.2-2+b1 ii psmisc 23.6-1 ii x11-utils 7.7+5 ii zenity 3.44.0-1 ii zlib1g 1:1.2.13.dfsg-1 Versions of packages thunderbird recommends: ii hunspell-de-at-frami [hunspell-dictionary] 1:7.5.0-1 ii hunspell-de-ch-frami [hunspell-dictionary] 1:7.5.0-1 ii hunspell-de-de-frami [hunspell-dictionary] 1:7.5.0-1 ii hunspell-en-gb [hunspell-dictionary] 1:7.5.0-1 ii hunspell-en-us [hunspell-dictionary] 1:2020.12.07-2 ii hunspell-es [hunspell-dictionary] 1:7.5.0-1 ii hunspell-ru [hunspell-dictionary] 1:7.5.0-1 ii myspell-fr-gut [myspell-dictionary] 1:1.0-32.2 Versions of packages thunderbird suggests: pn apparmor <none> ii fonts-lyx 2.3.7-1 ii libgssapi-krb5-2 1.20.1-2+deb12u4 -- no debconf information

