My computer is old and any add-on's take up memory space. Usually these cause other programs to not work. How do I block add-ons?

Question

Anything that occupies more space prevents my ability to use my computer. I have taken off all pictures, all programs which I can delete (including games from the Windows program.) I cannot download any new programs because it it at a maxiumum of 50% space occupied. I have to keep the older Firefox program because they use less space. Every so often I have to delete firefox and return to earlier versions because too much has been automatically added on. Then my computer refuses to work.

Answer 1

Also, after [https://www.mozilla.org/en-US/firefox/new/ updating to the latest Firefox], you can consider the [https://support.mozilla.org/en-US/kb/reset-firefox-easily-fix-most-problems Reset Firefox] feature via '''Help''' ('''Alt''' + '''H''') > '''Troubleshooting Information'''. You can also try to update via Firefox '''Help''' ('''Alt''' + '''H''') > '''About Firefox'''.
(To revert to the previous profile, close the new profile, start Firefox and choose the '''*.default''' profile. While the [https://support.mozilla.org/en-US/kb/profile-manager-create-and-remove-firefox-profiles Profile Manager] is open, you can also delete the newly reset profile (the one containing random numbers)).
[https://support.mozilla.org/en-US/kb/Managing-profiles Managing profiles]
[https://support.mozilla.org/en-US/kb/Profiles?s=profile&r=2&e=sph&as=s Profiles Howto]
It would also be a good idea to periodically clear the cache via '''Tools''' ('''Alt''' + '''T''') > '''Clear Recent History'''. Usually the websites cache could be the main reason for the filling up of the hard disk.
Note: ''This will temporarily log you out of all sites you're logged in to.''
To clear cache and cookies do the following:
#Go to Firefox > History > Clear recent history or (if no Firefox button is shown) go to Tools > Clear recent history.
#Under "Time range to clear", select "Everything".
#Now, click the arrow next to Details to toggle the Details list active.
#From the details list, check ''Cache'' and ''Cookies'' and uncheck everything else.
#Now click the ''Clear now'' button.
Further information can be found in the [[Clear your cache, history and other personal information in Firefox]] article.
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