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.

Search Support

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.

Learn More

At addons.mozilla.org Firefox 3.6.4 is detected as wrong version (Not available for Firefox 2.0.0.13), can't install add-ons

  • 3 balasan
  • 21 ada masalah ini
  • 2 paparan
  • Balasan terakhir oleh cor-el

more options

I am trying to add the following add-on: https://addons.mozilla.org/en-US/firefox/addon/1865/

I have the latest Firefox (3.6.4) but addons.mozilla.org keeps saying I am running an old version of Firefox (You are currently using Firefox 2.0.0.13;MEGAUPLOAD).

Because it had Megaupload in that line I checked my old add-ons and I had an old (DISABLED) Megaupload toolbar. I have uninstalled this but the symptoms have not changed.

I have also noticed that on Youtube it is always saying that my browser is no longer supported, but until today I thought it was just a youtube glitch.

This happened

Every time Firefox opened

== I think it was after last major Firefox upgrade (that's when I noticed the Youtube error)

I am trying to add the following add-on: https://addons.mozilla.org/en-US/firefox/addon/1865/ I have the latest Firefox (3.6.4) but addons.mozilla.org keeps saying I am running an old version of Firefox (You are currently using Firefox 2.0.0.13;MEGAUPLOAD). Because it had Megaupload in that line I checked my old add-ons and I had an old (DISABLED) Megaupload toolbar. I have uninstalled this but the symptoms have not changed. I have also noticed that on Youtube it is always saying that my browser is no longer supported, but until today I thought it was just a youtube glitch. == This happened == Every time Firefox opened == I think it was after last major Firefox upgrade (that's when I noticed the Youtube error)

Penyelesaian terpilih

Your user agent shows Firefox/2.0.0.13;MEGAUPLOAD 1.0

You have or had an extension installed (MegaUpload toolbar) that has changed the user agent from Firefox/3.6.4 to Firefox/2.0.0.13

You can see the Firefox version at the top and the user agent at bottom of the "Help > About" window (Mac: Firefox > About Mozilla Firefox). You check (compare) what websites see: http://whatsmyuseragent.com/ - Whats My User Agent?

You can check the general.useragent prefs on the about:config page. You can open the about:config page via the location bar, just like you open a website. Filter: general.useragent If general.useragent prefs are bold (user set) then you can right-click that pref and choose Reset.

See Web sites or add-ons incorrectly report incompatible browser and Find what version of Firefox you are using See also http://kb.mozillazine.org/Resetting_your_useragent_string_to_its_compiled-in_default

Baca jawapan ini dalam konteks 👍 4

All Replies (3)

more options

Penyelesaian Terpilih

Your user agent shows Firefox/2.0.0.13;MEGAUPLOAD 1.0

You have or had an extension installed (MegaUpload toolbar) that has changed the user agent from Firefox/3.6.4 to Firefox/2.0.0.13

You can see the Firefox version at the top and the user agent at bottom of the "Help > About" window (Mac: Firefox > About Mozilla Firefox). You check (compare) what websites see: http://whatsmyuseragent.com/ - Whats My User Agent?

You can check the general.useragent prefs on the about:config page. You can open the about:config page via the location bar, just like you open a website. Filter: general.useragent If general.useragent prefs are bold (user set) then you can right-click that pref and choose Reset.

See Web sites or add-ons incorrectly report incompatible browser and Find what version of Firefox you are using See also http://kb.mozillazine.org/Resetting_your_useragent_string_to_its_compiled-in_default

more options

Thank you cor-el, that solved the problem!

Very good clear instructions, much appreciated.