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Could not read chrome manifest file 'C:\Program Files\Mozilla Firefox\extensions\{972ce4c6-7e08-4474-a285-3208198ce6fd}\chrome.manifest'.

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New User

Could not read chrome manifest file 'C:\Program Files\Mozilla Firefox\extensions\{972ce4c6-7e08-4474-a285-3208198ce6fd}\chrome.manifest'.

I am trying to open a website and this was the error message shown, I have cleared cookies, enabled my protection, but it won't open....please help Could not read chrome manifest file 'C:\Program Files\Mozilla Firefox\extensions\{972ce4c6-7e08-4474-a285-3208198ce6fd}\chrome.manifest'.

3 REPLIES
Site Moderator

Re: Could not read chrome manifest file 'C:\Program Files\Mozilla Firefox\extensions\{972ce4c6-7e08-4474-a285-3208198ce6fd}\chrome.manifest'.

You can ignore that error. That is a reference to the default theme that is stored in the omni.jar archive (omni.jar/chrome/toolkit/skin/classic).


Clear the cache and the cookies from sites that cause problems.

"Clear the Cache":

  • Tools > Options > Advanced > Network > Offline Storage (Cache): "Clear Now"

"Remove Cookies" from sites causing problems:

  • Tools > Options > Privacy > Cookies: "Show Cookies"

Start Firefox in Troubleshoot Firefox issues using Safe Mode to check if one of the extensions is causing the problem (switch to the DEFAULT theme: Firefox (Tools) > Add-ons > Appearance/Themes).

New User

Re: Could not read chrome manifest file 'C:\Program Files\Mozilla Firefox\extensions\{972ce4c6-7e08-4474-a285-3208198ce6fd}\chrome.manifest'.

ITs an error that causes my computer to start flashing it needs a fix or i must install firefox from my win vista

New User

Re: Could not read chrome manifest file 'C:\Program Files\Mozilla Firefox\extensions\{972ce4c6-7e08-4474-a285-3208198ce6fd}\chrome.manifest'.

same my vista starts flashing this must be fixed or i have to delete firefox