WebFeb 3, 2024 · Then, launch Profile Manager from a Run window with: thunderbird.exe -p --allow-downgrade. Hi sfhowes, I actually installed ver78.12 with -allow downgrade in cmd line and it worked with old profile and data. But now my address book is vanished !!. WebJun 2, 2016 · 1. I am running program which open "chromium-browser" with following command-line parameters in Linux. --incognito = Causes the browser to launch directly in incognito mode. ↪ --no-first-run = Skip First Run tasks, whether or not it's actually the First Run. Overridden by kForceFirstRun.
Firefox/CommandLineOptions - MozillaWiki
WebFirefox profiles don't support downgrading, although it usually works. Try it with a copy in order to keep the original safe. Try it with a copy in order to keep the original safe. You will have to add --allow-downgrade to the launcher. WebYou can also tell firefox to use a profile which it warns is old, either by invoking it from a term in xorg using 'MOZ_ALLOW_DOWNGRADE=1 firefox' or by invoking it as 'firefox --allow-downgrade'. The latter invocation has been troublesome in the past but appears to work since 68.2.0 and can be used from a desktop 'launcher'. chief standardization strategy officer
How to fix an upgraded Firefox profile – Terence Eden’s Blog
WebOct 7, 2024 · Open a terminal and run: firefox --allow-downgrade. Let Firefox start up and create a new profile. Then go to: about:profiles. You'll see something like this: Select "Set as default profile" and click through any warnings. Close Firefox. Once again, run firefox --allow-downgrade. WebI kept getting the profile downgrade dialog (see attachment), which blocks launching Firefox with the existing profile. I could get past that by exporting MOZ_ALLOW_DOWNGRADE=1 prior to launching Firefox. I was starting with 67.0 and a fresh profile, which had compatibility.ini contents WebJul 7, 2024 · Admins may set the variable MOZ_LEGACY_PROFILES to disable the feature. Downgrade protection. Firefox 67 and newer support downgrade protections to prevent issues caused by running … got gas in my ear