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Yahoo mail not working in Firefox(latest version); IS working IE. Started today June 5

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Firefox 29.0.1 Yahoo Mail classic have switched/tried all avail versions June 5 after 12 noon PDT the SEND button does not work; Meaning can not reply, forward, or compose any emails;

I went to IE and have no problems. Logged in ; tried compose and send worked; tried forwrad and SEND button worked. I hate IE prefer Firefox but it is MANDATORY I can send emails.. (overrides preferences) Laptop computer, Windows XP,

Firefox 29.0.1 Yahoo Mail classic have switched/tried all avail versions June 5 after 12 noon PDT the SEND button does not work; Meaning can not reply, forward, or compose any emails; I went to IE and have no problems. Logged in ; tried compose and send worked; tried forwrad and SEND button worked. I hate IE prefer Firefox but it is MANDATORY I can send emails.. (overrides preferences) Laptop computer, Windows XP,

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Unless Yahoo changed something, which certainly is possible, the suggested approach is the usual:

When you have a problem with one particular site, a good "first thing to try" is clearing your Firefox cache and deleting your saved cookies for the site.

(1) Bypass Firefox's Cache

Use Ctrl+Shift+r to reload the page fresh from the server.

Alternately, you also can clear Firefox's cache completely using:

"3-bar" menu button (or Tools menu) > Options > Advanced

On the Network mini-tab > Cached Web Content : "Clear Now"

If you have a large hard drive, this might take a few minutes.

(2) Remove your Yahoo cookies (save any pending work first). While viewing a page on the site:

  • right-click and choose View Page Info > Security > "View Cookies"
  • Alt+t (open the classic Tools menu) > Page Info > Security > "View Cookies"

In the dialog that opens, you can remove your Yahoo cookies without affecting other sites.

Then try reloading the page and logging back in. Any improvement?


To rule out extensions as a possible culprit, could you try the site in Firefox's Safe Mode? That's a standard diagnostic tool to bypass interference by extensions (and some custom settings). More info: Diagnose Firefox issues using Troubleshoot Mode.

You can restart Firefox in Safe Mode using either

  • "3-bar" menu button > "?" button > Restart with Add-ons Disabled
  • Help menu > Restart with Add-ons Disabled

Flash and other plugins still run in Safe Mode

After Firefox closes, a small dialog should display. Click "Start in Safe Mode" (not Reset)

Any difference?


Some users have reported that older bookmarks or home pages do not redirect to the latest Yahoo server correctly. As a workaround, try accessing mail through the home page (www.yahoo.com or att.yahoo.com or whichever one it happens to be).