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Firefox doesn't start and I get this: “Error: Platform version ’18.0.1’ is not compatible with minVersion > = 18.0 maxVersion < 18.0

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Firefox worked and then when I shut down and restarted I suddenly started getting this message. What can I do?

Firefox worked and then when I shut down and restarted I suddenly started getting this message. What can I do?

Additional System Details

Application

  • User Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; InfoPath.3; .NET4.0C; AskTbARS/5.15.4.23821)

More Information

philipp
  • Top 10 Contributor
  • Moderator
2792 solutions 12987 answers

hello, this error might be caused by security programs such as zone alarm - please temporarily disable those programs for the following procedure:

  • download the full firefox setup file from getfirefox.com
  • uninstall firefox on the machine (but don't chose to delete your custom files & settings in the uninstaller)
  • manually delete all remaining files in the firefox program folder, which usually resides in C:\Program Files (x86)\Mozilla Firefox\
  • reinstall firefox
hello, this error might be caused by security programs such as zone alarm - please temporarily disable those programs for the following procedure: *download the full firefox setup file from getfirefox.com *uninstall firefox on the machine (but don't chose to delete your custom files & settings in the uninstaller) *manually delete all remaining files in the firefox program folder, which usually resides in ''C:\Program Files (x86)\Mozilla Firefox\'' *reinstall firefox
cor-el
  • Top 10 Contributor
  • Moderator
11981 solutions 111345 answers
See also: *http://kb.mozillazine.org/Browser_will_not_start_up#XULRunner_error_after_an_update
TinyGrasshopper 0 solutions 2 answers

I have this error too, however it's on Linux, on CentOS 5.9. The OS repo currently has Firefox 17.0.3 on it and I want to run a separate copy of up-to-date Firefox in another directory and I got this error when I tried to run it:

[root@mymachine firefox]# ./firefox Error: Platform version '17.0.3' is not compatible with minVersion >= 19.0.2 maxVersion <= 19.0.2

I can't delete the original copy of Firefox nor do I want to. What would be my recourse in this instance?

I have this error too, however it's on Linux, on CentOS 5.9. The OS repo currently has Firefox 17.0.3 on it and I want to run a separate copy of up-to-date Firefox in another directory and I got this error when I tried to run it: [root@mymachine firefox]# ./firefox Error: Platform version '17.0.3' is not compatible with minVersion >= 19.0.2 maxVersion <= 19.0.2 I can't delete the original copy of Firefox nor do I want to. What would be my recourse in this instance?
cor-el
  • Top 10 Contributor
  • Moderator
11981 solutions 111345 answers

Such an error is always caused by inconsistent files in the Firefox program folder (application.ini and/or platform.ini and possibly others) and your only option is to reinstall that version of Firefox, either via the software repositories or the Mozilla server.

Be sure to delete all files in that folder before copying the files from that tar.bz2 archive.<

Note that the current ESR version is 10.0.5

All Firefox releases:

Such an error is always caused by inconsistent files in the Firefox program folder (application.ini and/or platform.ini and possibly others) and your only option is to reinstall that version of Firefox, either via the software repositories or the Mozilla server.<br /> Be sure to delete all files in that folder before copying the files from that tar.bz2 archive.< *http://kb.mozillazine.org/Installing_Firefox#Linux Note that the current ESR version is 10.0.5 *http://www.mozilla.org/en-US/firefox/organizations/all.html *http://www.mozilla.org/en-US/firefox/17.0.5/releasenotes/ *http://www.mozilla.org/en-US/firefox/17.0.5/system-requirements/ All Firefox releases: *https://ftp.mozilla.org/pub/mozilla.org/firefox/releases/ (17.0.5esr/, latest-esr/, latest/)