yes sense the wikipedia shows that any inecraft mod created under a safe website is not contaminated with a virus.
You have nothing to worry about when downloading mods from Planet Minecraft, it is safe.
If you are looking for a easy way to install mods, someone made another Minecraft that can be used for downloading mods easier.
Safecraft!
Yes and no...depending where you get the mods. www.mods-for-minecraft.com seems to be ok just be careful downloading from any site do some research before you just download.
No it might be that you have an out dated mod that crashes to game or that you do not have something like modloader (which you need for most mods). Also when downloading mods make sure they are for your current version of minecraft or it will defiantly crash.
Most of them are. I have downloaded plenty, and all have worked like they were supposed to. But remember that all mods are made by users, and the Minecraft developers can never guarantee that they are safe.
You can go on youtube. search for mods and then click on a video for mods then go to the description of the video and download in the links or you can go to minecraft forums.
After downloading and installing Forge, you can download mods from websites like CurseForge or Modrinth. Once you've downloaded a mod (usually a .jar file), place it in the "mods" folder located in your Minecraft directory (typically under .minecraft). Launch Minecraft using the Forge profile, and the mods should automatically load. Make sure the mods are compatible with your version of Minecraft and Forge.
Usually no. The more popular mods never have viruses. However, if you get a not well known one, I suggest looking at the reviews...
you can get minecraft mods and textures off the minecraft mods website.
It depends what website you are downloading it from.
If you was to download minecraft (the game) you have to download the minecraft.jar (java file) from minecraft.net downloading other files such as texture packs and mods you have to download it from minecraft offical forum... hope this helps