you need to download ffmpeg and its dependencies, there are some discussion yesterday, you should be able to find the packages require to downgrade.
On Tue, 2020-06-30 at 09:30 +0200, asel wrote: > Package: chromium > Version: 81.0.4044.92-1 > Followup-For: Bug #963548 > > When trying to open any yourtube video, the error appears. > It also happens randomly in other URL's: > > Received signal 11 SEGV_MAPERR 00000000000c > #0 0x563acebd35a9 (/usr/lib/chromium/chromium+0x52485a8) > #1 0x563aceb38ac3 (/usr/lib/chromium/chromium+0x51adac2) > #2 0x563acebd3131 (/usr/lib/chromium/chromium+0x5248130) > #3 0x7fb02f52a110 (/usr/lib/x86_64-linux-gnu/libpthread- > 2.30.so+0x1410f) > #4 0x563acca4fe21 (/usr/lib/chromium/chromium+0x30c4e20) > #5 0x563acca419a8 (/usr/lib/chromium/chromium+0x30b69a7) > #6 0x563acca41730 (/usr/lib/chromium/chromium+0x30b672f) > #7 0x563acca15491 (/usr/lib/chromium/chromium+0x308a490) > #8 0x563acca0b8a9 (/usr/lib/chromium/chromium+0x30808a8) > #9 0x563acca0b501 (/usr/lib/chromium/chromium+0x3080500) > #10 0x563acca11daf (/usr/lib/chromium/chromium+0x3086dae) > #11 0x563acca11c37 (/usr/lib/chromium/chromium+0x3086c36) > #12 0x563acca54abc (/usr/lib/chromium/chromium+0x30c9abb) > #13 0x563acca56ff2 (/usr/lib/chromium/chromium+0x30cbff1) > #14 0x563acc986feb (/usr/lib/chromium/chromium+0x2ffbfea) > #15 0x563acc9875fe (/usr/lib/chromium/chromium+0x2ffc5fd) > #16 0x563acc96c477 (/usr/lib/chromium/chromium+0x2fe1476) > #17 0x563aceb83442 (/usr/lib/chromium/chromium+0x51f8441) > #18 0x563aceb93139 (/usr/lib/chromium/chromium+0x5208138) > #19 0x563aceb92ed5 (/usr/lib/chromium/chromium+0x5207ed4) > #20 0x563aceb4edaa (/usr/lib/chromium/chromium+0x51c3da9) > #21 0x563aceb939e9 (/usr/lib/chromium/chromium+0x52089e8) > #22 0x563aceb6bc84 (/usr/lib/chromium/chromium+0x51e0c83) > #23 0x563aceba7aa9 (/usr/lib/chromium/chromium+0x521caa8) > #24 0x563acebe346e (/usr/lib/chromium/chromium+0x525846d) > #25 0x7fb02f51ef27 start_thread > #26 0x7fb02a6c731f clone > r8: 0000000000000000 r9: 00000000000000ca r10: 0000000000000000 > r11: > 0000000000000246 > r12: 00007fafdaffb4c8 r13: 00007faff0104940 r14: 0000000000000000 > r15: > 00007faff0104710 > di: 00007faff0104710 si: 0000000000000000 bp: > 00007fafdaffb2a0 bx: > 0000000000000000 > dx: 000000007fffffff ax: 0000000000000000 cx: > 0000000000000000 sp: > 00007fafdaffb280 > ip: 0000563acca4fe21 efl: 0000000000010246 cgf: 002b000000000033 > erf: > 0000000000000006 > trp: 000000000000000e msk: 0000000000000000 cr2: 000000000000000c > [end of stack trace] > Calling _exit(1). Core file will not be generated. > > > > -- System Information: > Debian Release: bullseye/sid > APT prefers testing > APT policy: (500, 'testing') > Architecture: amd64 (x86_64) > > Kernel: Linux 5.6.0-2-amd64 (SMP w/12 CPU cores) > Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_OOT_MODULE, > TAINT_UNSIGNED_MODULE > Locale: LANG=es_ES.UTF-8, LC_CTYPE=es_ES.UTF-8 (charmap=UTF-8), > LANGUAGE=es_ES.UTF-8 (charmap=UTF-8) > Shell: /bin/sh linked to /usr/bin/dash > Init: systemd (via /run/systemd/system) > LSM: AppArmor: enabled > > Versions of packages chromium depends on: > ii chromium-common 81.0.4044.92-1 > ii libasound2 1.2.2-2.3 > ii libatk-bridge2.0-0 2.34.1-3 > ii libatk1.0-0 2.36.0-2 > ii libatspi2.0-0 2.36.0-2 > ii libavcodec58 7:4.3-2 > ii libavformat58 7:4.3-2 > ii libavutil56 7:4.3-2 > ii libc6 2.30-8 > ii libcairo2 1.16.0-4 > ii libcups2 2.3.3-1 > ii libdbus-1-3 1.12.18-1 > ii libdrm2 2.4.102-1 > ii libevent-2.1-7 2.1.11-stable-1 > ii libexpat1 2.2.9-1 > ii libflac8 1.3.3-1 > ii libfontconfig1 2.13.1-4.2 > ii libfreetype6 2.10.1-2 > ii libgbm1 20.1.1-1 > ii libgcc-s1 10.1.0-4 > ii libgdk-pixbuf2.0-0 2.40.0+dfsg-5 > ii libglib2.0-0 2.64.3-1 > ii libgtk-3-0 3.24.20-1 > ii libharfbuzz0b 2.6.4-1+b1 > ii libicu63 63.2-3 > ii libjpeg62-turbo 1:1.5.2-2+b1 > ii libjsoncpp1 1.7.4-3.1 > ii liblcms2-2 2.9-4+b1 > ii libminizip1 1.1-8+b1 > ii libnspr4 2:4.25-1 > ii libnss3 2:3.53.1-1 > ii libopenjp2-7 2.3.1-1 > ii libopus0 1.3-1+b1 > ii libpango-1.0-0 1.44.7-4 > ii libpangocairo-1.0-0 1.44.7-4 > ii libpng16-16 1.6.37-2 > ii libpulse0 13.0-5 > ii libre2-6 20200401+dfsg-1 > ii libsnappy1v5 1.1.8-1 > ii libstdc++6 10.1.0-4 > ii libvpx6 1.8.2-1 > ii libwebp6 0.6.1-2+b1 > ii libwebpdemux2 0.6.1-2+b1 > ii libwebpmux3 0.6.1-2+b1 > ii libx11-6 2:1.6.9-2+b1 > ii libx11-xcb1 2:1.6.9-2+b1 > ii libxcb-dri3-0 1.14-2 > ii libxcb1 1.14-2 > ii libxcomposite1 1:0.4.5-1 > ii libxcursor1 1:1.2.0-2 > ii libxdamage1 1:1.1.5-2 > ii libxext6 2:1.3.3-1+b2 > ii libxfixes3 1:5.0.3-2 > ii libxi6 2:1.7.10-1 > ii libxml2 2.9.10+dfsg-5+b1 > ii libxrandr2 2:1.5.1-1 > ii libxrender1 1:0.9.10-1 > ii libxslt1.1 1.1.34-4 > ii libxss1 1:1.2.3-1 > ii libxtst6 2:1.2.3-1 > ii zlib1g 1:1.2.11.dfsg-2 > > Versions of packages chromium recommends: > ii chromium-sandbox 81.0.4044.92-1 > > Versions of packages chromium suggests: > pn chromium-driver <none> > ii chromium-l10n 81.0.4044.92-1 > pn chromium-shell <none> > > Versions of packages chromium-common depends on: > ii x11-utils 7.7+5 > ii xdg-utils 1.1.3-2 > > Versions of packages chromium-common recommends: > ii chromium-sandbox 81.0.4044.92-1 > ii cinnamon [notification-daemon] 4.4.8-4 > ii fonts-liberation 1:1.07.4-11 > ii libgl1-mesa-dri 20.1.1-1 > ii libu2f-udev 1.1.10-1 > ii system-config-printer 1.5.12-1 > ii upower 0.99.11-2 > > Versions of packages chromium-sandbox depends on: > ii libc6 2.30-8 > > -- no debconf information >