I quitly searched Help for 'default browser' for Firefox. And suprise they had Seamonkey instructions to make it as Default Browser; From the Dock, open Safari. From the menu bar, click the Safari menu and select Preferences.... Click the General icon, to display the General preferences panel. In the Default Web Browser: drop-down list, select the browser you want to make default. Quit Safari. Also in firefox Options/Advanced/General(tab) is a check box to make or not make firefox the default browser.

the PC Optimiser Pro is malware and has to be treated as such so using a remover program that will actually take on the job and do a full removal including the hundreds of entries this nasty puts into your registry is essential, using the regular uninstaller will not do the trick. You need to be rid of this thing and it is likely where a lot of your problems are coming from. You have a malware infection. If you want help to run some scans and see what else may be happening in addition to that being installed then I would suggest heading to LandzDown and posting your own thread in this linked area Analysis and Malware Removal you will need to register first, if you need any help let me know I am there also. I think it would be a very good idea seeing the issues are having to go ahead and let the team at LZD help you run some scans to see just what all has installed and what has been affected. This is my best suggestion to you. You will be helped step by step to clean it from your pc. If you want to try using revo and hope it clears it fully here is that link Download Revo Uninstaller Freeware When was the last time you ran a fully updated malwarebytes scan on this pc?

try these suggestions Problems printing web pages troubleshoot printing problems in Firefox. try clearing all the cache and stuff on your browser, Tools> clear recent history> check mark those to clear> at the top where it ask for time period use the drop down arrow and select everything> ok Also clear your printer itself of all print jobs often there is a stuck print job that can cause problems. some people have had a similar problem and it was zone alarm do you happen to have it as your firewall? Make sure you have the most up to date version of flash on all your browsers too while you are doing this. You can use the secunia scan to find out what updates you might need. Secunia Online Software Inspector (OSI)

Don't worry. Hostas do weird things once in a while to keep you on your toes. There is even a name for that phenomenon, but I forgot. I see those every few years on mine. -Babka