Firefox: Disable automatic safe mode after crash

Question

How to prevent firefox showing the safe mode dialog after the crash?

It blocks

Answer 1

The solution by @mmm worked until the recent Tor Browser Bundle (which uses Firefox).

If you need an alternative, you can always delete the line

user_pref("toolkit.startup.recent_crashes", 4);

from prefs.js, for example like

sed -i '/toolkit\.startup\.recent_crashes/d' /path/to/prefs.js

or call this as

os.system("sed -i '/toolkit\.startup\.recent_crashes/d' " +
           os.path.join('/path/to' + 'prefs.js"))

Answer 2

Did you take a look at the configuration options in about:config, there are options for safebrowsing which might be useful.

Answer 3

I have no idea how you got this and what your testing flow is. So I can't reproduce and test the solution. But Firefox Safe Mode can be disabled by setting the key toolkit.startup.max_resumed_crashes in about:config to -1.

Here's how to start Firefox with that preference set in C# binding:

FirefoxProfile profile = new FirefoxProfile();
profile.SetPreference("toolkit.startup.max_resumed_crashes", "-1");

IWebDriver driver = new FirefoxDriver(profile);

Answer 4

Since Firefox 23, you can also use the environment variable MOZ_DISABLE_AUTO_SAFE_MODE to disable this dialog and the automatic safe mode.