I was having trouble with the Firefox v25 updating. I have Avast anti-virus installed and running Windows 7. Since I could not install update, I uninstall Firefox. Then I tried download the stub and the whole package for v26. Every time I try to install, it started up and extract the files, I see 100% extracted and then nothing happened.
I even disabled the anti-virus software but it made no difference.
Please help.
Thanks!
I didn't find the right solution from the Internet.