This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Avatar for Username

সহায়তা খুঁজুন

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

আরও জানুন

এই থ্রেডটি সংরক্ষিত ছিল। যদি আপনি সাহায্য চান তাহলে অনুগ্রহ করে একটি নতুন প্রশ্ন জিজ্ঞাসা করুন

Is there a way to specify version to use in command line?

  • 3 উত্তরসমূহ
  • 1 এই সমস্যাটি আছে
  • 1 দেখুন
  • শেষ জবাব দ্বারা FredMcD

Vrykodin
Vrykodin
more options

I have a website that is most compatible with a specific version of Firefox and I want to always open it in it's own instance with that version but I want all other shortcuts to open in the newest version. I have tried -new-instance but if either of them is open before the other it automatically opens as the version that was already open.

Ex. 1

1. Use old version shortcut with -new-instance and it opens the old version

2. Use new version shortcut with -new-instance and it opens in a new instance with old version

Ex. 2

1. Use new version shortcut with -new-instance and it opens with new version

2. Use old version shortcut with -new-instance and it opens with new version

I have a website that is most compatible with a specific version of Firefox and I want to always open it in it's own instance with that version but I want all other shortcuts to open in the newest version. I have tried -new-instance but if either of them is open before the other it automatically opens as the version that was already open. Ex. 1 1. Use old version shortcut with -new-instance and it opens the old version 2. Use new version shortcut with -new-instance and it opens in a new instance with old version Ex. 2 1. Use new version shortcut with -new-instance and it opens with new version 2. Use old version shortcut with -new-instance and it opens with new version

Vrykodin দ্বারা পরিমিত

All Replies (3)

FredMcD
FredMcD
more options

You can install as many versions of Firefox that you want. However;

Switch to manual and place each version in its own folder.

The Last Firefox you install will be labeled as the default program.

Vrykodin
Vrykodin প্রশ্নের মালিক
more options

FredMcD said

You can install as many versions of Firefox that you want. However; Switch to manual and place each version in its own folder. The Last Firefox you install will be labeled as the default program.

They are already installed in separate locations.

FredMcD
FredMcD
more options

This is the batch file I use (one line); C:\PROGRA~2\MOZILL~4\firefox.exe -P FirefoxESR -no-remote -new-instance -new-window http://comicskingdom.com/conceptis-kakuro/today 

Usage: C:\PROGRA~1\MOZILL~1\firefox.exe [ options ... ] [URL]
      where options include:

 -h or -help        Print this message.
 -v or -version     Print Firefox version.
 -P <profile>       Start with <profile>.
 -migration         Start with migration wizard.
 -ProfileManager    Start with ProfileManager.
 -no-remote         Do not accept or send remote commands; implies -new-instance.
 -new-instance      Open new instance, not a new window in running instance.
 -UILocale <locale> Start with <locale> resources as UI Locale.
 -safe-mode         Disables extensions and themes for this session.
 -console           Start Firefox with a debugging console.
 -jsconsole         Open the Error console.
 -browser           Open a browser window.
 -new-window  <url> Open <url> in a new window.
 -new-tab     <url> Open <url> in a new tab.
 -preferences       Open Options dialog.
 -search     <term> Search <term> with your default search engine.
 -setDefaultBrowser Set this app as the default browser.