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4 or 5 versions of firefox open when open firefox

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When i open firefox it takes a long time to open. Go to task manager - processes. Shows usually 5 (sometimes 4) firefox.exe running. When exit firefox all 5 firefox.exe processes end.

When i open firefox it takes a long time to open. Go to task manager - processes. Shows usually 5 (sometimes 4) firefox.exe running. When exit firefox all 5 firefox.exe processes end.

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More than one process is normal for the current Firefox. http://www.ghacks.net/2016/07/22/multi-process-firefox/

Multi-process Firefox is codenamed "e10s". https://wiki.mozilla.org/Firefox/multiprocess

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The number of processes is normal and is not connected with the startup time. This long time is more than a half of minute?

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Chosen Solution

More than one process is normal for the current Firefox. http://www.ghacks.net/2016/07/22/multi-process-firefox/

Multi-process Firefox is codenamed "e10s". https://wiki.mozilla.org/Firefox/multiprocess

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Firefox opens multiple processes if you're opening multiple tabs. Does your Firefox normally load multiple tabs at startup?

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Is there any way to stop this from happening? It is using system memory I don't want it to use. Older versions of FF did not open more than one instance in Task Manager and I liked that behavior better. This acting more like Internet Explorer and I don't use IE unless the WEB Site demands it for some functions like NFCU and Scan Deposits only working on IE>

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Type about:config<enter> in the address bar. If a warning screen comes up, press the I Accept the Risk button. At the top of the screen is a search bar. Type browser.startup.homepage

What is the value? Right-click and select Reset to restore its default value; about:home

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You can limit the number of content processes to 1, but that still gives a compositor and a main process.

Current Firefox releases have multi-process windows enabled. You may see three or more Firefox processes running.

  • one process for the main Firefox thread (user interface)
  • one or more processes for content threads set via "Options/Preferences -> General -> Performance" (dom.ipc.processCount)
  • one process for the compositor thread (Windows)

You can look in "Help -> Troubleshooting Information" (about:support) to see the current multi-process state.

  • "Help -> Troubleshooting Information" -> "Application Basics":
    Multiprocess Windows
    Web Content Processes
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Mam tento problem. Otevřu 1 okno Mozilly a ve spravci uloh je zobrazeno 5-6 krat mozilla firefox s 600 MB "zatiženi". Když otevřu 2 okna Mozilly, tak ve spravci se zobrazi 7-8 procesu mozilly. Jak tuto zavadu odstranit. Provedl jsem obnoveni Firefoxu, novou instalaci Firefoxu a dalši, zavada stale přetrvava. Děkuji za informace, ktere by mě pomohli toto odstranit. Han

odpověď zdělte na email-- [REMOVED]

Modified by Samuel Santos

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Hi poiuzt, this is normal: you may find 4-7 firefox.exe processes: 1-3 for the user interface and 1-4 for web pages (content processes).

If you want to reduce the number of content processes, so the total number of processes could come down to 2-4, see: Firefox's performance settings.

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poiuzt said

Mam tento problem. Otevřu 1 okno Mozilly a ve spravci uloh je zobrazeno 5-6 krat mozilla firefox s 600 MB "zatiženi". Když otevřu 2 okna Mozilly, tak ve spravci se zobrazi 7-8 procesu mozilly. Jak tuto zavadu odstranit. Provedl jsem obnoveni Firefoxu, novou instalaci Firefoxu a dalši, zavada stale přetrvava. Děkuji za informace, ktere by mě pomohli toto odstranit. Han odpověď zdělte na email-- [REMOVED]

Email removed for privacy.