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

Yahoo mail will not work after upgrading to Firefox 26, WHY?

  • 3 replies
  • 12 have this problem
  • 2294 views
  • Last reply by lfern65

more options

I can see my email, but I can't open it, delete it, or go to any other folders. I have reinstalled Firefox 3 times, restarted my computer every time, logged out and back into Yahoo. Nothing changes. Why does Firefox continually screw something up every time it upgrades? I just want the previous version back without losing all my saved passwords and bookmarks! WIN XP SP3

Chosen solution

As you've probably noticed, Yahoo! has been making a lot of email changes lately. Users who are using an older bookmark to access Yahoo! mail have reported various glitches. Try accessing your mail using one of these:

Make sure to bookmark the new address if it works.


More generally, when you have a problem with one particular site that previously worked fine, 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:

orange Firefox 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 the site's cookies (save any pending work first). While viewing a page on the site, try either:

  • 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 the site's cookies individually.

Then try reloading the page. Does that help?

Read this answer in context 👍 3

All Replies (3)

more options

Chosen Solution

As you've probably noticed, Yahoo! has been making a lot of email changes lately. Users who are using an older bookmark to access Yahoo! mail have reported various glitches. Try accessing your mail using one of these:

Make sure to bookmark the new address if it works.


More generally, when you have a problem with one particular site that previously worked fine, 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:

orange Firefox 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 the site's cookies (save any pending work first). While viewing a page on the site, try either:

  • 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 the site's cookies individually.

Then try reloading the page. Does that help?

more options

Thank You! I cleared the cache and cookies, and all is well again.

more options

This worked for me! Thanks!