It may because of your firefox running in background....

Create a new profile as a test to check if your current profile is causing the problems. See "Creating a profile":

• https://support.mozilla.org/kb/profile-manager-create-and-remove-firefox-profiles
• http://kb.mozillazine.org/Standard_diagnostic_-_Firefox#Profile_issues

Profile Backup and Restore

• http://kb.mozillazine.org/Profile_backup
• https://support.mozilla.org/en-US/kb/back-and-restore-information-firefox-profiles
• http://kb.mozillazine.org/Transferring_data_to_a_new_profile_-_Firefox

Hi, i had to restart my comp., but now the "too many tabs" still doesn't work, will disabling it then reinabling the extension make it forget the tabs saved?

What do you mean the "too many tabs"?

Can you attach a screenshot?

• http://en.wikipedia.org/wiki/Screenshot
• https://support.mozilla.org/kb/how-do-i-create-screenshot-my-problem

Use a compressed image type like PNG or JPG to save the screenshot.

In case you are using "Clear history when Firefox closes":

• do not clear the Browsing History
• do not clear the Cache because Firefox will disable the disk cache in such a case

• Tools > Options > Privacy > Firefox will: "Use custom settings for history": [X] "Clear history when Firefox closes" > Settings
• https://support.mozilla.org/kb/Clear+Recent+History

Note that clearing "Site Preferences" clears all exceptions for cookies, images, pop-up windows, software installation, and passwords.

can't go to different rows or add a tab to TMT

Remove your addon, restart your browser and reinstall it..

Hi, will this erase all the tabs saved on it? How can i save the tabs on it if it does erase it, i can't switch to the different rows to see what's saved. thx

Rightclick on the tab and choose "Bookmark All tabs"

I removed it and re-installed it, but doesn't show up