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Command-line parameters

  • I started out just looking for a "safe mode" command-line switch, like all the other browsers have; e.g.:

    C:\Program Files (x86)\Opera>launcher --disable-extensions
    

    I couldn't find it.

    So, my question is, where can I find documentation for Opera's command-line parameters?

    I'm using Opera for Windows, version 63.0.3368.53 (about to restart to update to 63.0.3368.71).

    The list of command-line switches / options / parameters for Opera used to be here:
    https://www.opera.com/docs/switches/

    It's gone, now. This seems to be the final version:
    https://web.archive.org/web/20180412125335/https://www.opera.com/docs/switches/

    It seems to have little resemblance to version 63 reality.

    There's also a big list of Chromium command-line parameters here:
    https://peter.sh/experiments/chromium-command-line-switches/

    I've only tried a few of them with Opera, and I didn't find any that work.

    A few command-line parameters seem to be recognized, even though they don't work right:

    --version or -version or /version doesn't display the version number unless you redirect the output into a file, but it does prevent Opera from opening a new window

    --help or -help or /help is similar. It doesn't seem to work at all if you run it via launcher.exe, but if you run the desired version of opera.exe directly, and redirect output into a file, like this:

    "C:\Program Files (x86)\63.0.3368.71\opera" --help >tmp.txt
    

    Then the resulting tmp.txt file contains:

    Opera 63.0.3368.71 Stable
    Features available through command-line switches:
    	--with-feature:better-address-bar [Enabled by default: true]
    	--with-feature:captive-portal-interstitial [Enabled by default: true]
    	--with-feature:chrome-extensions-one-click-install-policy [Enabled by default: true]
    	--with-feature:chromium-ua-compatibility [Enabled by default: false]
    	--with-feature:crypto-wallet [Enabled by default: true]
    	--with-feature:crypto-wallet-ios-instructions [Enabled by default: true]
    	--with-feature:crypto-wallet-new-server [Enabled by default: true]
    	--with-feature:lookalike-url-navigation-suggestions [Enabled by default: true]
    	--with-feature:notification-overlay-on-taskbar [Enabled by default: false]
    	--with-feature:partner-bookmarks-opt-out [Enabled by default: true]
    	--with-feature:reborn-3-dropdown [Enabled by default: false]
    	--with-feature:reborn-communicator-show-permissions [Enabled by default: true]
    	--with-feature:search-results-extensions-block-v2 [Enabled by default: true]
    	--with-feature:sd-flicker-buster [Enabled by default: false]
    	--with-feature:toolkit-bookmarks [Enabled by default: false]
    	--with-feature:update-recovery-page [Enabled by default: true]
    	--with-feature:wallpapers-api [Enabled by default: true]
    	--with-feature:warn-on-closing-multiple-tabs [Enabled by default: true]
    	--with-feature:yandex-zen-news [Enabled by default: false]
    	--with-feature:zoom-indicator [Enabled by default: true]
    	--with-feature:personal-news-notifications [Enabled by default: true]
    Press any key to continue . . .
    
  • @ncdave4life Chromium command line switchers should work in Opera.

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