Once the limit is reached, Firefox will slow down, slow down because it has to work more to get more memory and eventually, as usual - the browser crashes! Meanwhile, Firefox 64-bit, with the advantage of having more memory, will never fall into memory shortages. When you open too many tabs or when loading pages that are structured with complex code, or just because some of Firefox's own errors will result in the memory being allocated but not released even if no longer available use. Because with the exception of plugins, everything Firefox does runs in the same process: all the tabs and windows you open, all images, code, and downloads share 4GB of memory. Web browsers need to be equipped with good security technologies like ASLR, and with Mozilla abandoning the 64-bit version, Firefox will not be able to take advantage of the advanced security features mentioned above.įirefox has now become oversized for 32-bit memory space. Browsers are very easy to be vulnerable to malware attacks because they are frequently used to connect to network resources that are very useful but also have a lot of risk of being attacked. With 18 'billion' GB of memory, there are countless address spaces to disperse dynamic link libraries to places that are not easily found.įor other applications, ASLR security technology or 64-bit computing probably doesn't have too much significance. On 64-bit Windows, this issue has been resolved. Dynamic link libraries still need to be packed side by side to ensure there is enough memory for the data storage application. Therefore, when applying ASLR technology, there are not many random areas to make the above moves. Of the 4GB of memory that 32-bit processors can receive, the system takes about 2GB or 1GB, so applications only 2GB to 3GB to use. Each 32-bit process can access 2 caps of 32 bytes of memory (equivalent to 4GB) while the 64-bit process can access up to 64 64 bytes of memory (see also: differences between 32-bit Windows and Windows 64-bit). Mozilla should continue to develop a 64-bit "fire fox".įrom here, the problem with 32-bit Windows, or Firefox 32-bit, has gradually surfaced. On Windows 8 there is also a security feature, High Entropy ASLR, which is essentially a random distribution. This is the technology that moves dynamic DLL and application-linked libraries to random memory areas, making it harder for hackers to attack from outside. Or another method called ASLR - Address Space Layout Randomization. One of the popular technologies now is for the browser to run in a sandbox environment to reduce the risk of malicious software writing information to the user hard drive: when an application is launched, the Sandbox will create a "fence" around to isolate the application from the rest of the system. Therefore, both the computer operating system vendor and the browser developer must apply advanced technologies to reduce the risk of the user's browser or PC being attacked by hackers. Security holes in web browsers today are a painful problem. What are those aspects? Securityįirst we have to talk about security related factors. Because in many ways, 64-bit browsers clearly "break down" 32-bit versions. However, this is an unfortunate decision of Mozilla. They also announced that the full version of Firefox 64-bit will not be released in the first half of 2013 and it probably won't be released! Moreover, Mozilla developers have said that they will not fix errors that are only available on 64-bit versions. not fixed because that version is not preferred, and JavaScript executes slower on 32-bit versions. Many of the reasons for this decision were made by Mozilla: many plugins that do not support 64-bit versions, Mozilla's bug reporting and monitoring system do not distinguish between 32 and 64 bit, 64-bit version errors. During the development of a new version of Firefox, Mozilla divided into many different Build packages, and Build Nightly was one of those Builds, and it was developed by Moziila in two versions: 32-bit and 64- bit. What is Firefox's Nightly Build for 64-bit Windows users? If you are using Firefox on Windows, then the mainstream, stable version, which we usually download from Mozilla's home page is a 32-bit version of Firefox, although Windows you are installing on your computer is a good 32-bit Windows. As for Linux and Mac OS X, because of the contract, the 64-bit version is still available. They said they would stop developing Firefox's Nightly Build for 64-bit Windows users. Recently, Mozilla - the famous Firefox browser developer - has made a decision to cause a lot of "discontent" in this browser user community.
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