Firefox allows webmail services to be accessed and used via web browser protocols HTTP - HTTPS. Email communications use different protocols - POP3 - SMTP. Why do think blocking an IP address in Firefox is going to stop email spam from being either sent or received?
Blocking an IP address in your own computer would do nothing to stop

For Firefox Browser Bypass Georestrictions. Bypassing georestrictions is easy. Simply connect to desired location or hit Purpose Selection and access restricted content on Firefox. Unlimited Streaming. Streaming is the way to go! The addon lets you access all major streaming platforms such as Netflix, Amazon Prime, etc. at a click. Mozilla Firefox is probably the safest and most versatile web browser that you can use for surfing the Internet. However, there will be times when being able to change your IP address in Firefox will make it even safer from a privacy standpoint. Flagfox 6.1.28. Our Rating: User Rating: Popularity: 6 Flagfox is a handy add-on for Firefox that automatically retrieves the geographical location of the current website and displays the country's flag icon in the Firefox address bar. AdBlock is one of the most popular ad blockers worldwide with more than 60 million users on Chrome, Safari, Firefox, Edge as well as Android. Use AdBlock to block all ads and pop ups.

Jun 06, 2013 · The governments all around the world are censoring one thing or another on the Internet. Now it is a everyday news that this country blocked YouTube and that country blocked twitter and so on. You can unblock all these blocked sites by using the Stealthy add-on in Firefox. The Stealthy add-on provides you very fast proxies from all around the world. You can use it to quickly switch your IP

Setting this option was also effective in Release and Beta Firefox versions 43–48. Setting this option is not effective in Release and Beta versions of Firefox from version 48 onward. However, you can completely disable add-on signature checking in Firefox on all versions, including release. Shows how many users are visiting any World Website per day - Website IPv4/IPv6 Address - Hosting Company - DNS Information - Other Sites on this IP Address Also ===== - Check you are visiting Websites for Viruses/Malware on Symantec Website (Norton Antivirus Safe Web SiteAdviser) - Alexa Popularity Rank - Web of Trust (MyWOT) Rank - Ignore X Hoxx VPN Proxy is a VPN browser extension dedicated to Firefox and Chrome, which gives you the possibility to connect to another country in order to hide your real IP address, replace it with a Firefox Addon sending real IP Address I've tested going to my own webserver and in the apache logs I can see my real IP address. Doesn't matter which region I choose in the apache logs I can alway see my real IP.

Aug 21, 2018 · One extension that’s a bit different from the others is the addon provided by ExpressVPN. Its Chrome and Firefox extensions act as remote controls for the device-level VPN apps, but they also automatically adjust the browser’s geolocation services. As such, the detected location matches that of the VPN server you’re connected to.

Windscribe VPN for Firefox is a very powerful online security and privacy solution for the Firefox browser. It encrypts data sent and received over the Internet while protecting your personal information like passwords, emails, instant messages and downloads.